18365280380

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{971}}^1\times {\mathrm{7219}}^1$

素因数の和:8330

約数の個数: 48

約数和(自身を含む): 38906904960

約数和(自身を除く): 20541624580

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 971, 1310, 1942, 2620, 3884, 4855, 7219, 9710, 14438, 19420, 28876, 36095, 72190, 127201, 144380, 254402, 508804, 636005, 945689, 1272010, 1891378, 2544020, 3782756, 4728445, 7009649, 9456890, 14019298, 18913780, 28038596, 35048245, 70096490, 140192980, 918264019, 1836528038, 3673056076, 4591320095, 9182640190, 18365280380]

約数ペア:

[(1, 18365280380), (2, 9182640190), (4, 4591320095), (5, 3673056076), (10, 1836528038), (20, 918264019), (131, 140192980), (262, 70096490), (524, 35048245), (655, 28038596), (971, 18913780), (1310, 14019298), (1942, 9456890), (2620, 7009649), (3884, 4728445), (4855, 3782756), (7219, 2544020), (9710, 1891378), (14438, 1272010), (19420, 945689), (28876, 636005), (36095, 508804), (72190, 254402), (127201, 144380)]