20981474080

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{577}}^1\times {\mathrm{32467}}^1$

素因数の和:33066

約数の個数: 96

約数和(自身を含む): 56749908096

約数和(自身を除く): 35768434016

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 577, 1120, 1154, 2308, 2885, 4039, 4616, 5770, 8078, 9232, 11540, 16156, 18464, 20195, 23080, 32312, 32467, 40390, 46160, 64624, 64934, 80780, 92320, 129248, 129868, 161560, 162335, 227269, 259736, 323120, 324670, 454538, 519472, 646240, 649340, 909076, 1038944, 1136345, 1298680, 1818152, 2272690, 2597360, 3636304, 4545380, 5194720, 7272608, 9090760, 18181520, 18733459, 36363040, 37466918, 74933836, 93667295, 131134213, 149867672, 187334590, 262268426, 299735344, 374669180, 524536852, 599470688, 655671065, 749338360, 1049073704, 1311342130, 1498676720, 2098147408, 2622684260, 2997353440, 4196294816, 5245368520, 10490737040, 20981474080]

約数ペア:

[(1, 20981474080), (2, 10490737040), (4, 5245368520), (5, 4196294816), (7, 2997353440), (8, 2622684260), (10, 2098147408), (14, 1498676720), (16, 1311342130), (20, 1049073704), (28, 749338360), (32, 655671065), (35, 599470688), (40, 524536852), (56, 374669180), (70, 299735344), (80, 262268426), (112, 187334590), (140, 149867672), (160, 131134213), (224, 93667295), (280, 74933836), (560, 37466918), (577, 36363040), (1120, 18733459), (1154, 18181520), (2308, 9090760), (2885, 7272608), (4039, 5194720), (4616, 4545380), (5770, 3636304), (8078, 2597360), (9232, 2272690), (11540, 1818152), (16156, 1298680), (18464, 1136345), (20195, 1038944), (23080, 909076), (32312, 649340), (32467, 646240), (40390, 519472), (46160, 454538), (64624, 324670), (64934, 323120), (80780, 259736), (92320, 227269), (129248, 162335), (129868, 161560)]