64616940

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{39887}}^1$

素因数の和:39908

約数の個数: 60

約数和(自身を含む): 202710816

約数和(自身を除く): 138093876

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 39887, 79774, 119661, 159548, 199435, 239322, 358983, 398870, 478644, 598305, 717966, 797740, 1076949, 1196610, 1435932, 1794915, 2153898, 2393220, 3230847, 3589830, 4307796, 5384745, 6461694, 7179660, 10769490, 12923388, 16154235, 21538980, 32308470, 64616940]

約数ペア:

[(1, 64616940), (2, 32308470), (3, 21538980), (4, 16154235), (5, 12923388), (6, 10769490), (9, 7179660), (10, 6461694), (12, 5384745), (15, 4307796), (18, 3589830), (20, 3230847), (27, 2393220), (30, 2153898), (36, 1794915), (45, 1435932), (54, 1196610), (60, 1076949), (81, 797740), (90, 717966), (108, 598305), (135, 478644), (162, 398870), (180, 358983), (270, 239322), (324, 199435), (405, 159548), (540, 119661), (810, 79774), (1620, 39887)]