311942925

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6389}}^1$

素因数の和:6443

約数の個数: 72

約数和(自身を含む): 659243520

約数和(自身を除く): 347300595

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 31, 35, 45, 63, 75, 93, 105, 155, 175, 217, 225, 279, 315, 465, 525, 651, 775, 1085, 1395, 1575, 1953, 2325, 3255, 5425, 6389, 6975, 9765, 16275, 19167, 31945, 44723, 48825, 57501, 95835, 134169, 159725, 198059, 223615, 287505, 402507, 479175, 594177, 670845, 990295, 1118075, 1386413, 1437525, 1782531, 2012535, 2970885, 3354225, 4159239, 4951475, 6932065, 8912655, 10062675, 12477717, 14854425, 20796195, 34660325, 44563275, 62388585, 103980975, 311942925]

約数ペア:

[(1, 311942925), (3, 103980975), (5, 62388585), (7, 44563275), (9, 34660325), (15, 20796195), (21, 14854425), (25, 12477717), (31, 10062675), (35, 8912655), (45, 6932065), (63, 4951475), (75, 4159239), (93, 3354225), (105, 2970885), (155, 2012535), (175, 1782531), (217, 1437525), (225, 1386413), (279, 1118075), (315, 990295), (465, 670845), (525, 594177), (651, 479175), (775, 402507), (1085, 287505), (1395, 223615), (1575, 198059), (1953, 159725), (2325, 134169), (3255, 95835), (5425, 57501), (6389, 48825), (6975, 44723), (9765, 31945), (16275, 19167)]