20590980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{347}}^1$

素因数の和:425

約数の個数: 96

約数和(自身を含む): 61737984

約数和(自身を除く): 41147004

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 43, 46, 60, 69, 86, 92, 115, 129, 138, 172, 215, 230, 258, 276, 345, 347, 430, 460, 516, 645, 690, 694, 860, 989, 1041, 1290, 1380, 1388, 1735, 1978, 2082, 2580, 2967, 3470, 3956, 4164, 4945, 5205, 5934, 6940, 7981, 9890, 10410, 11868, 14835, 14921, 15962, 19780, 20820, 23943, 29670, 29842, 31924, 39905, 44763, 47886, 59340, 59684, 74605, 79810, 89526, 95772, 119715, 149210, 159620, 179052, 223815, 239430, 298420, 343183, 447630, 478860, 686366, 895260, 1029549, 1372732, 1715915, 2059098, 3431830, 4118196, 5147745, 6863660, 10295490, 20590980]

約数ペア:

[(1, 20590980), (2, 10295490), (3, 6863660), (4, 5147745), (5, 4118196), (6, 3431830), (10, 2059098), (12, 1715915), (15, 1372732), (20, 1029549), (23, 895260), (30, 686366), (43, 478860), (46, 447630), (60, 343183), (69, 298420), (86, 239430), (92, 223815), (115, 179052), (129, 159620), (138, 149210), (172, 119715), (215, 95772), (230, 89526), (258, 79810), (276, 74605), (345, 59684), (347, 59340), (430, 47886), (460, 44763), (516, 39905), (645, 31924), (690, 29842), (694, 29670), (860, 23943), (989, 20820), (1041, 19780), (1290, 15962), (1380, 14921), (1388, 14835), (1735, 11868), (1978, 10410), (2082, 9890), (2580, 7981), (2967, 6940), (3470, 5934), (3956, 5205), (4164, 4945)]