645280128

素因数分解:

$2^7\times 3^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1$

素因数の和:390

約数の個数: 256

約数和(自身を含む): 2075904000

約数和(自身を除く): 1430623872

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 27, 31, 32, 36, 38, 48, 54, 57, 62, 64, 72, 76, 93, 96, 108, 114, 124, 128, 144, 152, 171, 186, 192, 216, 228, 248, 279, 288, 304, 317, 342, 372, 384, 432, 456, 496, 513, 558, 576, 589, 608, 634, 684, 744, 837, 864, 912, 951, 992, 1026, 1116, 1152, 1178, 1216, 1268, 1368, 1488, 1674, 1728, 1767, 1824, 1902, 1984, 2052, 2232, 2356, 2432, 2536, 2736, 2853, 2976, 3348, 3456, 3534, 3648, 3804, 3968, 4104, 4464, 4712, 5072, 5301, 5472, 5706, 5952, 6023, 6696, 7068, 7296, 7608, 8208, 8559, 8928, 9424, 9827, 10144, 10602, 10944, 11412, 11904, 12046, 13392, 14136, 15216, 15903, 16416, 17118, 17856, 18069, 18848, 19654, 20288, 21204, 21888, 22824, 24092, 26784, 28272, 29481, 30432, 31806, 32832, 34236, 35712, 36138, 37696, 39308, 40576, 42408, 45648, 48184, 53568, 54207, 56544, 58962, 60864, 63612, 65664, 68472, 72276, 75392, 78616, 84816, 88443, 91296, 96368, 107136, 108414, 113088, 117924, 121728, 127224, 136944, 144552, 157232, 162621, 169632, 176886, 182592, 186713, 192736, 216828, 226176, 235848, 254448, 265329, 273888, 289104, 314464, 325242, 339264, 353772, 365184, 373426, 385472, 433656, 471696, 508896, 530658, 547776, 560139, 578208, 628928, 650484, 678528, 707544, 746852, 770944, 867312, 943392, 1017792, 1061316, 1095552, 1120278, 1156416, 1257856, 1300968, 1415088, 1493704, 1680417, 1734624, 1886784, 2035584, 2122632, 2240556, 2312832, 2601936, 2830176, 2987408, 3360834, 3469248, 3773568, 4245264, 4481112, 5041251, 5203872, 5660352, 5974816, 6721668, 6938496, 8490528, 8962224, 10082502, 10407744, 11320704, 11949632, 13443336, 16981056, 17924448, 20165004, 20815488, 23899264, 26886672, 33962112, 35848896, 40330008, 53773344, 71697792, 80660016, 107546688, 161320032, 215093376, 322640064, 645280128]

約数ペア:

[(1, 645280128), (2, 322640064), (3, 215093376), (4, 161320032), (6, 107546688), (8, 80660016), (9, 71697792), (12, 53773344), (16, 40330008), (18, 35848896), (19, 33962112), (24, 26886672), (27, 23899264), (31, 20815488), (32, 20165004), (36, 17924448), (38, 16981056), (48, 13443336), (54, 11949632), (57, 11320704), (62, 10407744), (64, 10082502), (72, 8962224), (76, 8490528), (93, 6938496), (96, 6721668), (108, 5974816), (114, 5660352), (124, 5203872), (128, 5041251), (144, 4481112), (152, 4245264), (171, 3773568), (186, 3469248), (192, 3360834), (216, 2987408), (228, 2830176), (248, 2601936), (279, 2312832), (288, 2240556), (304, 2122632), (317, 2035584), (342, 1886784), (372, 1734624), (384, 1680417), (432, 1493704), (456, 1415088), (496, 1300968), (513, 1257856), (558, 1156416), (576, 1120278), (589, 1095552), (608, 1061316), (634, 1017792), (684, 943392), (744, 867312), (837, 770944), (864, 746852), (912, 707544), (951, 678528), (992, 650484), (1026, 628928), (1116, 578208), (1152, 560139), (1178, 547776), (1216, 530658), (1268, 508896), (1368, 471696), (1488, 433656), (1674, 385472), (1728, 373426), (1767, 365184), (1824, 353772), (1902, 339264), (1984, 325242), (2052, 314464), (2232, 289104), (2356, 273888), (2432, 265329), (2536, 254448), (2736, 235848), (2853, 226176), (2976, 216828), (3348, 192736), (3456, 186713), (3534, 182592), (3648, 176886), (3804, 169632), (3968, 162621), (4104, 157232), (4464, 144552), (4712, 136944), (5072, 127224), (5301, 121728), (5472, 117924), (5706, 113088), (5952, 108414), (6023, 107136), (6696, 96368), (7068, 91296), (7296, 88443), (7608, 84816), (8208, 78616), (8559, 75392), (8928, 72276), (9424, 68472), (9827, 65664), (10144, 63612), (10602, 60864), (10944, 58962), (11412, 56544), (11904, 54207), (12046, 53568), (13392, 48184), (14136, 45648), (15216, 42408), (15903, 40576), (16416, 39308), (17118, 37696), (17856, 36138), (18069, 35712), (18848, 34236), (19654, 32832), (20288, 31806), (21204, 30432), (21888, 29481), (22824, 28272), (24092, 26784)]