9885980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{809}}^1$

素因数の和:878

約数の個数: 48

約数和(自身を含む): 22861440

約数和(自身を除く): 12975460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 65, 94, 130, 188, 235, 260, 470, 611, 809, 940, 1222, 1618, 2444, 3055, 3236, 4045, 6110, 8090, 10517, 12220, 16180, 21034, 38023, 42068, 52585, 76046, 105170, 152092, 190115, 210340, 380230, 494299, 760460, 988598, 1977196, 2471495, 4942990, 9885980]

約数ペア:

[(1, 9885980), (2, 4942990), (4, 2471495), (5, 1977196), (10, 988598), (13, 760460), (20, 494299), (26, 380230), (47, 210340), (52, 190115), (65, 152092), (94, 105170), (130, 76046), (188, 52585), (235, 42068), (260, 38023), (470, 21034), (611, 16180), (809, 12220), (940, 10517), (1222, 8090), (1618, 6110), (2444, 4045), (3055, 3236)]