15425480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{619}}^1$

素因数の和:726

約数の個数: 64

約数和(自身を含む): 40176000

約数和(自身を除く): 24750520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 89, 140, 178, 280, 356, 445, 619, 623, 712, 890, 1238, 1246, 1780, 2476, 2492, 3095, 3115, 3560, 4333, 4952, 4984, 6190, 6230, 8666, 12380, 12460, 17332, 21665, 24760, 24920, 34664, 43330, 55091, 86660, 110182, 173320, 220364, 275455, 385637, 440728, 550910, 771274, 1101820, 1542548, 1928185, 2203640, 3085096, 3856370, 7712740, 15425480]

約数ペア:

[(1, 15425480), (2, 7712740), (4, 3856370), (5, 3085096), (7, 2203640), (8, 1928185), (10, 1542548), (14, 1101820), (20, 771274), (28, 550910), (35, 440728), (40, 385637), (56, 275455), (70, 220364), (89, 173320), (140, 110182), (178, 86660), (280, 55091), (356, 43330), (445, 34664), (619, 24920), (623, 24760), (712, 21665), (890, 17332), (1238, 12460), (1246, 12380), (1780, 8666), (2476, 6230), (2492, 6190), (3095, 4984), (3115, 4952), (3560, 4333)]