256907664

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{233}}^1$

素因数の和:310

約数の個数: 240

約数和(自身を含む): 844945920

約数和(自身を除く): 588038256

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 19, 24, 26, 31, 36, 38, 39, 48, 52, 57, 62, 72, 76, 78, 93, 104, 114, 117, 124, 144, 152, 156, 171, 186, 208, 228, 233, 234, 247, 248, 279, 304, 312, 342, 372, 403, 456, 466, 468, 494, 496, 558, 589, 624, 684, 699, 741, 744, 806, 912, 932, 936, 988, 1116, 1178, 1209, 1368, 1398, 1482, 1488, 1612, 1767, 1864, 1872, 1976, 2097, 2223, 2232, 2356, 2418, 2736, 2796, 2964, 3029, 3224, 3534, 3627, 3728, 3952, 4194, 4427, 4446, 4464, 4712, 4836, 5301, 5592, 5928, 6058, 6448, 7068, 7223, 7254, 7657, 8388, 8854, 8892, 9087, 9424, 9672, 10602, 11184, 11856, 12116, 13281, 14136, 14446, 14508, 15314, 16776, 17708, 17784, 18174, 19344, 21204, 21669, 22971, 24232, 26562, 27261, 28272, 28892, 29016, 30628, 33552, 35416, 35568, 36348, 39843, 42408, 43338, 45942, 48464, 53124, 54522, 57551, 57784, 58032, 61256, 65007, 68913, 70832, 72696, 79686, 84816, 86676, 91884, 93899, 106248, 109044, 115102, 115568, 122512, 130014, 137237, 137826, 145392, 159372, 172653, 173352, 183768, 187798, 212496, 218088, 230204, 260028, 274474, 275652, 281697, 318744, 345306, 346704, 367536, 375596, 411711, 436176, 460408, 517959, 520056, 548948, 551304, 563394, 637488, 690612, 751192, 823422, 845091, 920816, 1035918, 1040112, 1097896, 1102608, 1126788, 1235133, 1381224, 1502384, 1646844, 1690182, 1784081, 2071836, 2195792, 2253576, 2470266, 2762448, 3293688, 3380364, 3568162, 4143672, 4507152, 4940532, 5352243, 6587376, 6760728, 7136324, 8287344, 9881064, 10704486, 13521456, 14272648, 16056729, 19762128, 21408972, 28545296, 32113458, 42817944, 64226916, 85635888, 128453832, 256907664]

約数ペア:

[(1, 256907664), (2, 128453832), (3, 85635888), (4, 64226916), (6, 42817944), (8, 32113458), (9, 28545296), (12, 21408972), (13, 19762128), (16, 16056729), (18, 14272648), (19, 13521456), (24, 10704486), (26, 9881064), (31, 8287344), (36, 7136324), (38, 6760728), (39, 6587376), (48, 5352243), (52, 4940532), (57, 4507152), (62, 4143672), (72, 3568162), (76, 3380364), (78, 3293688), (93, 2762448), (104, 2470266), (114, 2253576), (117, 2195792), (124, 2071836), (144, 1784081), (152, 1690182), (156, 1646844), (171, 1502384), (186, 1381224), (208, 1235133), (228, 1126788), (233, 1102608), (234, 1097896), (247, 1040112), (248, 1035918), (279, 920816), (304, 845091), (312, 823422), (342, 751192), (372, 690612), (403, 637488), (456, 563394), (466, 551304), (468, 548948), (494, 520056), (496, 517959), (558, 460408), (589, 436176), (624, 411711), (684, 375596), (699, 367536), (741, 346704), (744, 345306), (806, 318744), (912, 281697), (932, 275652), (936, 274474), (988, 260028), (1116, 230204), (1178, 218088), (1209, 212496), (1368, 187798), (1398, 183768), (1482, 173352), (1488, 172653), (1612, 159372), (1767, 145392), (1864, 137826), (1872, 137237), (1976, 130014), (2097, 122512), (2223, 115568), (2232, 115102), (2356, 109044), (2418, 106248), (2736, 93899), (2796, 91884), (2964, 86676), (3029, 84816), (3224, 79686), (3534, 72696), (3627, 70832), (3728, 68913), (3952, 65007), (4194, 61256), (4427, 58032), (4446, 57784), (4464, 57551), (4712, 54522), (4836, 53124), (5301, 48464), (5592, 45942), (5928, 43338), (6058, 42408), (6448, 39843), (7068, 36348), (7223, 35568), (7254, 35416), (7657, 33552), (8388, 30628), (8854, 29016), (8892, 28892), (9087, 28272), (9424, 27261), (9672, 26562), (10602, 24232), (11184, 22971), (11856, 21669), (12116, 21204), (13281, 19344), (14136, 18174), (14446, 17784), (14508, 17708), (15314, 16776)]