15207990

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{521}}^1$

素因数の和:677

約数の個数: 64

約数和(自身を含む): 42094080

約数和(自身を除く): 26886090

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 139, 210, 278, 417, 521, 695, 834, 973, 1042, 1390, 1563, 1946, 2085, 2605, 2919, 3126, 3647, 4170, 4865, 5210, 5838, 7294, 7815, 9730, 10941, 14595, 15630, 18235, 21882, 29190, 36470, 54705, 72419, 109410, 144838, 217257, 362095, 434514, 506933, 724190, 1013866, 1086285, 1520799, 2172570, 2534665, 3041598, 5069330, 7603995, 15207990]

約数ペア:

[(1, 15207990), (2, 7603995), (3, 5069330), (5, 3041598), (6, 2534665), (7, 2172570), (10, 1520799), (14, 1086285), (15, 1013866), (21, 724190), (30, 506933), (35, 434514), (42, 362095), (70, 217257), (105, 144838), (139, 109410), (210, 72419), (278, 54705), (417, 36470), (521, 29190), (695, 21882), (834, 18235), (973, 15630), (1042, 14595), (1390, 10941), (1563, 9730), (1946, 7815), (2085, 7294), (2605, 5838), (2919, 5210), (3126, 4865), (3647, 4170)]