23981960

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{191}}^1$

素因数の和:318

約数の個数: 64

約数和(自身を含む): 56263680

約数和(自身を除く): 32281720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 73, 86, 146, 172, 191, 215, 292, 344, 365, 382, 430, 584, 730, 764, 860, 955, 1460, 1528, 1720, 1910, 2920, 3139, 3820, 6278, 7640, 8213, 12556, 13943, 15695, 16426, 25112, 27886, 31390, 32852, 41065, 55772, 62780, 65704, 69715, 82130, 111544, 125560, 139430, 164260, 278860, 328520, 557720, 599549, 1199098, 2398196, 2997745, 4796392, 5995490, 11990980, 23981960]

約数ペア:

[(1, 23981960), (2, 11990980), (4, 5995490), (5, 4796392), (8, 2997745), (10, 2398196), (20, 1199098), (40, 599549), (43, 557720), (73, 328520), (86, 278860), (146, 164260), (172, 139430), (191, 125560), (215, 111544), (292, 82130), (344, 69715), (365, 65704), (382, 62780), (430, 55772), (584, 41065), (730, 32852), (764, 31390), (860, 27886), (955, 25112), (1460, 16426), (1528, 15695), (1720, 13943), (1910, 12556), (2920, 8213), (3139, 7640), (3820, 6278)]