31263925

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 49104000

約数和(自身を除く): 17840075

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 109, 149, 175, 275, 385, 545, 745, 763, 1043, 1199, 1639, 1925, 2725, 3725, 3815, 5215, 5995, 8195, 8393, 11473, 16241, 19075, 26075, 29975, 40975, 41965, 57365, 81205, 113687, 178651, 209825, 286825, 406025, 568435, 893255, 1250557, 2842175, 4466275, 6252785, 31263925]

約数ペア:

[(1, 31263925), (5, 6252785), (7, 4466275), (11, 2842175), (25, 1250557), (35, 893255), (55, 568435), (77, 406025), (109, 286825), (149, 209825), (175, 178651), (275, 113687), (385, 81205), (545, 57365), (745, 41965), (763, 40975), (1043, 29975), (1199, 26075), (1639, 19075), (1925, 16241), (2725, 11473), (3725, 8393), (3815, 8195), (5215, 5995)]