21526320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{349}}^1$

素因数の和:622

約数の個数: 80

約数和(自身を含む): 67183200

約数和(自身を除く): 45656880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 257, 349, 514, 698, 771, 1028, 1047, 1285, 1396, 1542, 1745, 2056, 2094, 2570, 2792, 3084, 3490, 3855, 4112, 4188, 5140, 5235, 5584, 6168, 6980, 7710, 8376, 10280, 10470, 12336, 13960, 15420, 16752, 20560, 20940, 27920, 30840, 41880, 61680, 83760, 89693, 179386, 269079, 358772, 448465, 538158, 717544, 896930, 1076316, 1345395, 1435088, 1793860, 2152632, 2690790, 3587720, 4305264, 5381580, 7175440, 10763160, 21526320]

約数ペア:

[(1, 21526320), (2, 10763160), (3, 7175440), (4, 5381580), (5, 4305264), (6, 3587720), (8, 2690790), (10, 2152632), (12, 1793860), (15, 1435088), (16, 1345395), (20, 1076316), (24, 896930), (30, 717544), (40, 538158), (48, 448465), (60, 358772), (80, 269079), (120, 179386), (240, 89693), (257, 83760), (349, 61680), (514, 41880), (698, 30840), (771, 27920), (1028, 20940), (1047, 20560), (1285, 16752), (1396, 15420), (1542, 13960), (1745, 12336), (2056, 10470), (2094, 10280), (2570, 8376), (2792, 7710), (3084, 6980), (3490, 6168), (3855, 5584), (4112, 5235), (4188, 5140)]