260765440

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{15671}}^1$

素因数の和:15705

約数の個数: 72

約数和(自身を含む): 672704928

約数和(自身を除く): 411939488

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, 15671, 16640, 31342, 62684, 78355, 125368, 156710, 203723, 250736, 313420, 407446, 501472, 626840, 814892, 1002944, 1018615, 1253680, 1629784, 2005888, 2037230, 2507360, 3259568, 4011776, 4074460, 5014720, 6519136, 8148920, 10029440, 13038272, 16297840, 20058880, 26076544, 32595680, 52153088, 65191360, 130382720, 260765440]

約数ペア:

[(1, 260765440), (2, 130382720), (4, 65191360), (5, 52153088), (8, 32595680), (10, 26076544), (13, 20058880), (16, 16297840), (20, 13038272), (26, 10029440), (32, 8148920), (40, 6519136), (52, 5014720), (64, 4074460), (65, 4011776), (80, 3259568), (104, 2507360), (128, 2037230), (130, 2005888), (160, 1629784), (208, 1253680), (256, 1018615), (260, 1002944), (320, 814892), (416, 626840), (520, 501472), (640, 407446), (832, 313420), (1040, 250736), (1280, 203723), (1664, 156710), (2080, 125368), (3328, 78355), (4160, 62684), (8320, 31342), (15671, 16640)]