631273212

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^2\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:400

約数の個数: 108

約数和(自身を含む): 1678583088

約数和(自身を除く): 1047309876

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 71, 93, 124, 142, 186, 213, 257, 279, 284, 372, 426, 514, 558, 639, 771, 852, 961, 1028, 1116, 1278, 1542, 1922, 2201, 2313, 2556, 2883, 3084, 3844, 4402, 4626, 5766, 6603, 7967, 8649, 8804, 9252, 11532, 13206, 15934, 17298, 18247, 19809, 23901, 26412, 31868, 34596, 36494, 39618, 47802, 54741, 68231, 71703, 72988, 79236, 95604, 109482, 136462, 143406, 164223, 204693, 218964, 246977, 272924, 286812, 328446, 409386, 493954, 565657, 614079, 656892, 740931, 818772, 987908, 1131314, 1228158, 1481862, 1696971, 2222793, 2262628, 2456316, 2963724, 3393942, 4445586, 5090913, 6787884, 8891172, 10181826, 17535367, 20363652, 35070734, 52606101, 70141468, 105212202, 157818303, 210424404, 315636606, 631273212]

約数ペア:

[(1, 631273212), (2, 315636606), (3, 210424404), (4, 157818303), (6, 105212202), (9, 70141468), (12, 52606101), (18, 35070734), (31, 20363652), (36, 17535367), (62, 10181826), (71, 8891172), (93, 6787884), (124, 5090913), (142, 4445586), (186, 3393942), (213, 2963724), (257, 2456316), (279, 2262628), (284, 2222793), (372, 1696971), (426, 1481862), (514, 1228158), (558, 1131314), (639, 987908), (771, 818772), (852, 740931), (961, 656892), (1028, 614079), (1116, 565657), (1278, 493954), (1542, 409386), (1922, 328446), (2201, 286812), (2313, 272924), (2556, 246977), (2883, 218964), (3084, 204693), (3844, 164223), (4402, 143406), (4626, 136462), (5766, 109482), (6603, 95604), (7967, 79236), (8649, 72988), (8804, 71703), (9252, 68231), (11532, 54741), (13206, 47802), (15934, 39618), (17298, 36494), (18247, 34596), (19809, 31868), (23901, 26412)]