81640872

素因数分解:

$2^3\times 3^4\times {\mathrm{19}}^2\times {\mathrm{349}}^1$

素因数の和:405

約数の個数: 120

約数和(自身を含む): 242030250

約数和(自身を除く): 160389378

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 27, 36, 38, 54, 57, 72, 76, 81, 108, 114, 152, 162, 171, 216, 228, 324, 342, 349, 361, 456, 513, 648, 684, 698, 722, 1026, 1047, 1083, 1368, 1396, 1444, 1539, 2052, 2094, 2166, 2792, 2888, 3078, 3141, 3249, 4104, 4188, 4332, 6156, 6282, 6498, 6631, 8376, 8664, 9423, 9747, 12312, 12564, 12996, 13262, 18846, 19494, 19893, 25128, 25992, 26524, 28269, 29241, 37692, 38988, 39786, 53048, 56538, 58482, 59679, 75384, 77976, 79572, 113076, 116964, 119358, 125989, 159144, 179037, 226152, 233928, 238716, 251978, 358074, 377967, 477432, 503956, 537111, 716148, 755934, 1007912, 1074222, 1133901, 1432296, 1511868, 2148444, 2267802, 3023736, 3401703, 4296888, 4535604, 6803406, 9071208, 10205109, 13606812, 20410218, 27213624, 40820436, 81640872]

約数ペア:

[(1, 81640872), (2, 40820436), (3, 27213624), (4, 20410218), (6, 13606812), (8, 10205109), (9, 9071208), (12, 6803406), (18, 4535604), (19, 4296888), (24, 3401703), (27, 3023736), (36, 2267802), (38, 2148444), (54, 1511868), (57, 1432296), (72, 1133901), (76, 1074222), (81, 1007912), (108, 755934), (114, 716148), (152, 537111), (162, 503956), (171, 477432), (216, 377967), (228, 358074), (324, 251978), (342, 238716), (349, 233928), (361, 226152), (456, 179037), (513, 159144), (648, 125989), (684, 119358), (698, 116964), (722, 113076), (1026, 79572), (1047, 77976), (1083, 75384), (1368, 59679), (1396, 58482), (1444, 56538), (1539, 53048), (2052, 39786), (2094, 38988), (2166, 37692), (2792, 29241), (2888, 28269), (3078, 26524), (3141, 25992), (3249, 25128), (4104, 19893), (4188, 19494), (4332, 18846), (6156, 13262), (6282, 12996), (6498, 12564), (6631, 12312), (8376, 9747), (8664, 9423)]