678429440

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{40771}}^1$

素因数の和:40805

約数の個数: 72

約数和(自身を含む): 1750097328

約数和(自身を除く): 1071667888

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1664, 2080, 3328, 4160, 8320, 16640, 40771, 81542, 163084, 203855, 326168, 407710, 530023, 652336, 815420, 1060046, 1304672, 1630840, 2120092, 2609344, 2650115, 3261680, 4240184, 5218688, 5300230, 6523360, 8480368, 10437376, 10600460, 13046720, 16960736, 21200920, 26093440, 33921472, 42401840, 52186880, 67842944, 84803680, 135685888, 169607360, 339214720, 678429440]

約数ペア:

[(1, 678429440), (2, 339214720), (4, 169607360), (5, 135685888), (8, 84803680), (10, 67842944), (13, 52186880), (16, 42401840), (20, 33921472), (26, 26093440), (32, 21200920), (40, 16960736), (52, 13046720), (64, 10600460), (65, 10437376), (80, 8480368), (104, 6523360), (128, 5300230), (130, 5218688), (160, 4240184), (208, 3261680), (256, 2650115), (260, 2609344), (320, 2120092), (416, 1630840), (520, 1304672), (640, 1060046), (832, 815420), (1040, 652336), (1280, 530023), (1664, 407710), (2080, 326168), (3328, 203855), (4160, 163084), (8320, 81542), (16640, 40771)]