20815488

素因数分解:

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

素因数の和:359

約数の個数: 128

約数和(自身を含む): 64872000

約数和(自身を除く): 44056512

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 27, 32, 36, 38, 48, 54, 57, 64, 72, 76, 96, 108, 114, 128, 144, 152, 171, 192, 216, 228, 288, 304, 317, 342, 384, 432, 456, 513, 576, 608, 634, 684, 864, 912, 951, 1026, 1152, 1216, 1268, 1368, 1728, 1824, 1902, 2052, 2432, 2536, 2736, 2853, 3456, 3648, 3804, 4104, 5072, 5472, 5706, 6023, 7296, 7608, 8208, 8559, 10144, 10944, 11412, 12046, 15216, 16416, 17118, 18069, 20288, 21888, 22824, 24092, 30432, 32832, 34236, 36138, 40576, 45648, 48184, 54207, 60864, 65664, 68472, 72276, 91296, 96368, 108414, 121728, 136944, 144552, 162621, 182592, 192736, 216828, 273888, 289104, 325242, 365184, 385472, 433656, 547776, 578208, 650484, 770944, 867312, 1095552, 1156416, 1300968, 1734624, 2312832, 2601936, 3469248, 5203872, 6938496, 10407744, 20815488]

約数ペア:

[(1, 20815488), (2, 10407744), (3, 6938496), (4, 5203872), (6, 3469248), (8, 2601936), (9, 2312832), (12, 1734624), (16, 1300968), (18, 1156416), (19, 1095552), (24, 867312), (27, 770944), (32, 650484), (36, 578208), (38, 547776), (48, 433656), (54, 385472), (57, 365184), (64, 325242), (72, 289104), (76, 273888), (96, 216828), (108, 192736), (114, 182592), (128, 162621), (144, 144552), (152, 136944), (171, 121728), (192, 108414), (216, 96368), (228, 91296), (288, 72276), (304, 68472), (317, 65664), (342, 60864), (384, 54207), (432, 48184), (456, 45648), (513, 40576), (576, 36138), (608, 34236), (634, 32832), (684, 30432), (864, 24092), (912, 22824), (951, 21888), (1026, 20288), (1152, 18069), (1216, 17118), (1268, 16416), (1368, 15216), (1728, 12046), (1824, 11412), (1902, 10944), (2052, 10144), (2432, 8559), (2536, 8208), (2736, 7608), (2853, 7296), (3456, 6023), (3648, 5706), (3804, 5472), (4104, 5072)]