312507920

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{1487}}^1$

素因数の和:1608

約数の個数: 80

約数和(自身を含む): 757237248

約数和(自身を除く): 444729328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 71, 74, 80, 142, 148, 185, 284, 296, 355, 370, 568, 592, 710, 740, 1136, 1420, 1480, 1487, 2627, 2840, 2960, 2974, 5254, 5680, 5948, 7435, 10508, 11896, 13135, 14870, 21016, 23792, 26270, 29740, 42032, 52540, 55019, 59480, 105080, 105577, 110038, 118960, 210160, 211154, 220076, 275095, 422308, 440152, 527885, 550190, 844616, 880304, 1055770, 1100380, 1689232, 2111540, 2200760, 3906349, 4223080, 4401520, 7812698, 8446160, 15625396, 19531745, 31250792, 39063490, 62501584, 78126980, 156253960, 312507920]

約数ペア:

[(1, 312507920), (2, 156253960), (4, 78126980), (5, 62501584), (8, 39063490), (10, 31250792), (16, 19531745), (20, 15625396), (37, 8446160), (40, 7812698), (71, 4401520), (74, 4223080), (80, 3906349), (142, 2200760), (148, 2111540), (185, 1689232), (284, 1100380), (296, 1055770), (355, 880304), (370, 844616), (568, 550190), (592, 527885), (710, 440152), (740, 422308), (1136, 275095), (1420, 220076), (1480, 211154), (1487, 210160), (2627, 118960), (2840, 110038), (2960, 105577), (2974, 105080), (5254, 59480), (5680, 55019), (5948, 52540), (7435, 42032), (10508, 29740), (11896, 26270), (13135, 23792), (14870, 21016)]