15403980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1847}}^1$

素因数の和:1998

約数の個数: 48

約数和(自身を含む): 43464960

約数和(自身を除く): 28060980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 139, 278, 417, 556, 695, 834, 1390, 1668, 1847, 2085, 2780, 3694, 4170, 5541, 7388, 8340, 9235, 11082, 18470, 22164, 27705, 36940, 55410, 110820, 256733, 513466, 770199, 1026932, 1283665, 1540398, 2567330, 3080796, 3850995, 5134660, 7701990, 15403980]

約数ペア:

[(1, 15403980), (2, 7701990), (3, 5134660), (4, 3850995), (5, 3080796), (6, 2567330), (10, 1540398), (12, 1283665), (15, 1026932), (20, 770199), (30, 513466), (60, 256733), (139, 110820), (278, 55410), (417, 36940), (556, 27705), (695, 22164), (834, 18470), (1390, 11082), (1668, 9235), (1847, 8340), (2085, 7388), (2780, 5541), (3694, 4170)]