31105620

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1$

素因数の和:252

約数の個数: 240

約数和(自身を含む): 120667008

約数和(自身を除く): 89561388

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 27, 28, 30, 35, 36, 39, 42, 45, 52, 54, 60, 63, 65, 70, 78, 81, 84, 90, 91, 105, 108, 117, 126, 130, 135, 140, 156, 162, 180, 182, 189, 195, 210, 211, 234, 252, 260, 270, 273, 315, 324, 351, 364, 378, 390, 405, 420, 422, 455, 468, 540, 546, 567, 585, 630, 633, 702, 756, 780, 810, 819, 844, 910, 945, 1053, 1055, 1092, 1134, 1170, 1260, 1266, 1365, 1404, 1477, 1620, 1638, 1755, 1820, 1890, 1899, 2106, 2110, 2268, 2340, 2457, 2532, 2730, 2743, 2835, 2954, 3165, 3276, 3510, 3780, 3798, 4095, 4212, 4220, 4431, 4914, 5265, 5460, 5486, 5670, 5697, 5908, 6330, 7020, 7371, 7385, 7596, 8190, 8229, 8862, 9495, 9828, 10530, 10972, 11340, 11394, 12285, 12660, 13293, 13715, 14742, 14770, 16380, 16458, 17091, 17724, 18990, 19201, 21060, 22155, 22788, 24570, 24687, 26586, 27430, 28485, 29484, 29540, 32916, 34182, 36855, 37980, 38402, 39879, 41145, 44310, 49140, 49374, 53172, 54860, 56970, 57603, 66465, 68364, 73710, 74061, 76804, 79758, 82290, 85455, 88620, 96005, 98748, 113940, 115206, 119637, 123435, 132930, 147420, 148122, 159516, 164580, 170910, 172809, 192010, 199395, 222183, 230412, 239274, 246870, 265860, 288015, 296244, 341820, 345618, 370305, 384020, 398790, 444366, 478548, 493740, 518427, 576030, 598185, 691236, 740610, 797580, 864045, 888732, 1036854, 1110915, 1152060, 1196370, 1481220, 1555281, 1728090, 2073708, 2221830, 2392740, 2592135, 3110562, 3456180, 4443660, 5184270, 6221124, 7776405, 10368540, 15552810, 31105620]

約数ペア:

[(1, 31105620), (2, 15552810), (3, 10368540), (4, 7776405), (5, 6221124), (6, 5184270), (7, 4443660), (9, 3456180), (10, 3110562), (12, 2592135), (13, 2392740), (14, 2221830), (15, 2073708), (18, 1728090), (20, 1555281), (21, 1481220), (26, 1196370), (27, 1152060), (28, 1110915), (30, 1036854), (35, 888732), (36, 864045), (39, 797580), (42, 740610), (45, 691236), (52, 598185), (54, 576030), (60, 518427), (63, 493740), (65, 478548), (70, 444366), (78, 398790), (81, 384020), (84, 370305), (90, 345618), (91, 341820), (105, 296244), (108, 288015), (117, 265860), (126, 246870), (130, 239274), (135, 230412), (140, 222183), (156, 199395), (162, 192010), (180, 172809), (182, 170910), (189, 164580), (195, 159516), (210, 148122), (211, 147420), (234, 132930), (252, 123435), (260, 119637), (270, 115206), (273, 113940), (315, 98748), (324, 96005), (351, 88620), (364, 85455), (378, 82290), (390, 79758), (405, 76804), (420, 74061), (422, 73710), (455, 68364), (468, 66465), (540, 57603), (546, 56970), (567, 54860), (585, 53172), (630, 49374), (633, 49140), (702, 44310), (756, 41145), (780, 39879), (810, 38402), (819, 37980), (844, 36855), (910, 34182), (945, 32916), (1053, 29540), (1055, 29484), (1092, 28485), (1134, 27430), (1170, 26586), (1260, 24687), (1266, 24570), (1365, 22788), (1404, 22155), (1477, 21060), (1620, 19201), (1638, 18990), (1755, 17724), (1820, 17091), (1890, 16458), (1899, 16380), (2106, 14770), (2110, 14742), (2268, 13715), (2340, 13293), (2457, 12660), (2532, 12285), (2730, 11394), (2743, 11340), (2835, 10972), (2954, 10530), (3165, 9828), (3276, 9495), (3510, 8862), (3780, 8229), (3798, 8190), (4095, 7596), (4212, 7385), (4220, 7371), (4431, 7020), (4914, 6330), (5265, 5908), (5460, 5697), (5486, 5670)]