15189740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{563}}^1$

素因数の和:662

約数の個数: 48

約数和(自身を含む): 34110720

約数和(自身を除く): 18920980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 95, 142, 190, 284, 355, 380, 563, 710, 1126, 1349, 1420, 2252, 2698, 2815, 5396, 5630, 6745, 10697, 11260, 13490, 21394, 26980, 39973, 42788, 53485, 79946, 106970, 159892, 199865, 213940, 399730, 759487, 799460, 1518974, 3037948, 3797435, 7594870, 15189740]

約数ペア:

[(1, 15189740), (2, 7594870), (4, 3797435), (5, 3037948), (10, 1518974), (19, 799460), (20, 759487), (38, 399730), (71, 213940), (76, 199865), (95, 159892), (142, 106970), (190, 79946), (284, 53485), (355, 42788), (380, 39973), (563, 26980), (710, 21394), (1126, 13490), (1349, 11260), (1420, 10697), (2252, 6745), (2698, 5630), (2815, 5396)]