31787028

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1$

素因数の和:374

約数の個数: 144

約数和(自身を含む): 102409216

約数和(自身を除く): 70622188

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 31, 36, 39, 42, 52, 62, 63, 78, 84, 91, 93, 117, 124, 126, 156, 182, 186, 217, 234, 252, 273, 279, 313, 364, 372, 403, 434, 468, 546, 558, 626, 651, 806, 819, 868, 939, 1092, 1116, 1209, 1252, 1302, 1612, 1638, 1878, 1953, 2191, 2418, 2604, 2817, 2821, 3276, 3627, 3756, 3906, 4069, 4382, 4836, 5634, 5642, 6573, 7254, 7812, 8138, 8463, 8764, 9703, 11268, 11284, 12207, 13146, 14508, 16276, 16926, 19406, 19719, 24414, 25389, 26292, 28483, 29109, 33852, 36621, 38812, 39438, 48828, 50778, 56966, 58218, 67921, 73242, 78876, 85449, 87327, 101556, 113932, 116436, 126139, 135842, 146484, 170898, 174654, 203763, 252278, 256347, 271684, 341796, 349308, 378417, 407526, 504556, 512694, 611289, 756834, 815052, 882973, 1025388, 1135251, 1222578, 1513668, 1765946, 2270502, 2445156, 2648919, 3531892, 4541004, 5297838, 7946757, 10595676, 15893514, 31787028]

約数ペア:

[(1, 31787028), (2, 15893514), (3, 10595676), (4, 7946757), (6, 5297838), (7, 4541004), (9, 3531892), (12, 2648919), (13, 2445156), (14, 2270502), (18, 1765946), (21, 1513668), (26, 1222578), (28, 1135251), (31, 1025388), (36, 882973), (39, 815052), (42, 756834), (52, 611289), (62, 512694), (63, 504556), (78, 407526), (84, 378417), (91, 349308), (93, 341796), (117, 271684), (124, 256347), (126, 252278), (156, 203763), (182, 174654), (186, 170898), (217, 146484), (234, 135842), (252, 126139), (273, 116436), (279, 113932), (313, 101556), (364, 87327), (372, 85449), (403, 78876), (434, 73242), (468, 67921), (546, 58218), (558, 56966), (626, 50778), (651, 48828), (806, 39438), (819, 38812), (868, 36621), (939, 33852), (1092, 29109), (1116, 28483), (1209, 26292), (1252, 25389), (1302, 24414), (1612, 19719), (1638, 19406), (1878, 16926), (1953, 16276), (2191, 14508), (2418, 13146), (2604, 12207), (2817, 11284), (2821, 11268), (3276, 9703), (3627, 8764), (3756, 8463), (3906, 8138), (4069, 7812), (4382, 7254), (4836, 6573), (5634, 5642)]