71777680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{5309}}^1$

素因数の和:5348

約数の個数: 60

約数和(自身を含む): 180741780

約数和(自身を除く): 108964100

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 338, 520, 676, 845, 1040, 1352, 1690, 2704, 3380, 5309, 6760, 10618, 13520, 21236, 26545, 42472, 53090, 69017, 84944, 106180, 138034, 212360, 276068, 345085, 424720, 552136, 690170, 897221, 1104272, 1380340, 1794442, 2760680, 3588884, 4486105, 5521360, 7177768, 8972210, 14355536, 17944420, 35888840, 71777680]

約数ペア:

[(1, 71777680), (2, 35888840), (4, 17944420), (5, 14355536), (8, 8972210), (10, 7177768), (13, 5521360), (16, 4486105), (20, 3588884), (26, 2760680), (40, 1794442), (52, 1380340), (65, 1104272), (80, 897221), (104, 690170), (130, 552136), (169, 424720), (208, 345085), (260, 276068), (338, 212360), (520, 138034), (676, 106180), (845, 84944), (1040, 69017), (1352, 53090), (1690, 42472), (2704, 26545), (3380, 21236), (5309, 13520), (6760, 10618)]