51435280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{137}}^1$

素因数の和:201

約数の個数: 120

約数和(自身を含む): 136913112

約数和(自身を除く): 85477832

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 137, 152, 190, 208, 247, 260, 274, 304, 361, 380, 494, 520, 548, 685, 722, 760, 988, 1040, 1096, 1235, 1370, 1444, 1520, 1781, 1805, 1976, 2192, 2470, 2603, 2740, 2888, 3562, 3610, 3952, 4693, 4940, 5206, 5480, 5776, 7124, 7220, 8905, 9386, 9880, 10412, 10960, 13015, 14248, 14440, 17810, 18772, 19760, 20824, 23465, 26030, 28496, 28880, 33839, 35620, 37544, 41648, 46930, 49457, 52060, 67678, 71240, 75088, 93860, 98914, 104120, 135356, 142480, 169195, 187720, 197828, 208240, 247285, 270712, 338390, 375440, 395656, 494570, 541424, 642941, 676780, 791312, 989140, 1285882, 1353560, 1978280, 2571764, 2707120, 3214705, 3956560, 5143528, 6429410, 10287056, 12858820, 25717640, 51435280]

約数ペア:

[(1, 51435280), (2, 25717640), (4, 12858820), (5, 10287056), (8, 6429410), (10, 5143528), (13, 3956560), (16, 3214705), (19, 2707120), (20, 2571764), (26, 1978280), (38, 1353560), (40, 1285882), (52, 989140), (65, 791312), (76, 676780), (80, 642941), (95, 541424), (104, 494570), (130, 395656), (137, 375440), (152, 338390), (190, 270712), (208, 247285), (247, 208240), (260, 197828), (274, 187720), (304, 169195), (361, 142480), (380, 135356), (494, 104120), (520, 98914), (548, 93860), (685, 75088), (722, 71240), (760, 67678), (988, 52060), (1040, 49457), (1096, 46930), (1235, 41648), (1370, 37544), (1444, 35620), (1520, 33839), (1781, 28880), (1805, 28496), (1976, 26030), (2192, 23465), (2470, 20824), (2603, 19760), (2740, 18772), (2888, 17810), (3562, 14440), (3610, 14248), (3952, 13015), (4693, 10960), (4940, 10412), (5206, 9880), (5480, 9386), (5776, 8905), (7124, 7220)]