31951140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{137}}^1$

素因数の和:198

約数の個数: 144

約数和(自身を含む): 101824128

約数和(自身を除く): 69872988

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 23, 26, 30, 39, 46, 52, 60, 65, 69, 78, 92, 115, 130, 137, 138, 156, 169, 195, 230, 260, 274, 276, 299, 338, 345, 390, 411, 460, 507, 548, 598, 676, 685, 690, 780, 822, 845, 897, 1014, 1196, 1370, 1380, 1495, 1644, 1690, 1781, 1794, 2028, 2055, 2535, 2740, 2990, 3151, 3380, 3562, 3588, 3887, 4110, 4485, 5070, 5343, 5980, 6302, 7124, 7774, 8220, 8905, 8970, 9453, 10140, 10686, 11661, 12604, 15548, 15755, 17810, 17940, 18906, 19435, 21372, 23153, 23322, 26715, 31510, 35620, 37812, 38870, 40963, 46306, 46644, 47265, 53430, 58305, 63020, 69459, 77740, 81926, 92612, 94530, 106860, 115765, 116610, 122889, 138918, 163852, 189060, 204815, 231530, 233220, 245778, 277836, 347295, 409630, 463060, 491556, 532519, 614445, 694590, 819260, 1065038, 1228890, 1389180, 1597557, 2130076, 2457780, 2662595, 3195114, 5325190, 6390228, 7987785, 10650380, 15975570, 31951140]

約数ペア:

[(1, 31951140), (2, 15975570), (3, 10650380), (4, 7987785), (5, 6390228), (6, 5325190), (10, 3195114), (12, 2662595), (13, 2457780), (15, 2130076), (20, 1597557), (23, 1389180), (26, 1228890), (30, 1065038), (39, 819260), (46, 694590), (52, 614445), (60, 532519), (65, 491556), (69, 463060), (78, 409630), (92, 347295), (115, 277836), (130, 245778), (137, 233220), (138, 231530), (156, 204815), (169, 189060), (195, 163852), (230, 138918), (260, 122889), (274, 116610), (276, 115765), (299, 106860), (338, 94530), (345, 92612), (390, 81926), (411, 77740), (460, 69459), (507, 63020), (548, 58305), (598, 53430), (676, 47265), (685, 46644), (690, 46306), (780, 40963), (822, 38870), (845, 37812), (897, 35620), (1014, 31510), (1196, 26715), (1370, 23322), (1380, 23153), (1495, 21372), (1644, 19435), (1690, 18906), (1781, 17940), (1794, 17810), (2028, 15755), (2055, 15548), (2535, 12604), (2740, 11661), (2990, 10686), (3151, 10140), (3380, 9453), (3562, 8970), (3588, 8905), (3887, 8220), (4110, 7774), (4485, 7124), (5070, 6302), (5343, 5980)]