897913040

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{439}}^1\times {\mathrm{691}}^1$

素因数の和:1180

約数の個数: 80

約数和(自身を含む): 2152064640

約数和(自身を除く): 1254151600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 439, 592, 691, 740, 878, 1382, 1480, 1756, 2195, 2764, 2960, 3455, 3512, 4390, 5528, 6910, 7024, 8780, 11056, 13820, 16243, 17560, 25567, 27640, 32486, 35120, 51134, 55280, 64972, 81215, 102268, 127835, 129944, 162430, 204536, 255670, 259888, 303349, 324860, 409072, 511340, 606698, 649720, 1022680, 1213396, 1299440, 1516745, 2045360, 2426792, 3033490, 4853584, 6066980, 11223913, 12133960, 22447826, 24267920, 44895652, 56119565, 89791304, 112239130, 179582608, 224478260, 448956520, 897913040]

約数ペア:

[(1, 897913040), (2, 448956520), (4, 224478260), (5, 179582608), (8, 112239130), (10, 89791304), (16, 56119565), (20, 44895652), (37, 24267920), (40, 22447826), (74, 12133960), (80, 11223913), (148, 6066980), (185, 4853584), (296, 3033490), (370, 2426792), (439, 2045360), (592, 1516745), (691, 1299440), (740, 1213396), (878, 1022680), (1382, 649720), (1480, 606698), (1756, 511340), (2195, 409072), (2764, 324860), (2960, 303349), (3455, 259888), (3512, 255670), (4390, 204536), (5528, 162430), (6910, 129944), (7024, 127835), (8780, 102268), (11056, 81215), (13820, 64972), (16243, 55280), (17560, 51134), (25567, 35120), (27640, 32486)]