18733240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^2$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 44652600

約数和(自身を除く): 25919360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 157, 190, 314, 380, 628, 760, 785, 1256, 1570, 2983, 3140, 5966, 6280, 11932, 14915, 23864, 24649, 29830, 49298, 59660, 98596, 119320, 123245, 197192, 246490, 468331, 492980, 936662, 985960, 1873324, 2341655, 3746648, 4683310, 9366620, 18733240]

約数ペア:

[(1, 18733240), (2, 9366620), (4, 4683310), (5, 3746648), (8, 2341655), (10, 1873324), (19, 985960), (20, 936662), (38, 492980), (40, 468331), (76, 246490), (95, 197192), (152, 123245), (157, 119320), (190, 98596), (314, 59660), (380, 49298), (628, 29830), (760, 24649), (785, 23864), (1256, 14915), (1570, 11932), (2983, 6280), (3140, 5966)]