18935760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{307}}^1$

素因数の和:580

約数の個数: 80

約数和(自身を含む): 59121216

約数和(自身を除く): 40185456

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 257, 307, 514, 614, 771, 921, 1028, 1228, 1285, 1535, 1542, 1842, 2056, 2456, 2570, 3070, 3084, 3684, 3855, 4112, 4605, 4912, 5140, 6140, 6168, 7368, 7710, 9210, 10280, 12280, 12336, 14736, 15420, 18420, 20560, 24560, 30840, 36840, 61680, 73680, 78899, 157798, 236697, 315596, 394495, 473394, 631192, 788990, 946788, 1183485, 1262384, 1577980, 1893576, 2366970, 3155960, 3787152, 4733940, 6311920, 9467880, 18935760]

約数ペア:

[(1, 18935760), (2, 9467880), (3, 6311920), (4, 4733940), (5, 3787152), (6, 3155960), (8, 2366970), (10, 1893576), (12, 1577980), (15, 1262384), (16, 1183485), (20, 946788), (24, 788990), (30, 631192), (40, 473394), (48, 394495), (60, 315596), (80, 236697), (120, 157798), (240, 78899), (257, 73680), (307, 61680), (514, 36840), (614, 30840), (771, 24560), (921, 20560), (1028, 18420), (1228, 15420), (1285, 14736), (1535, 12336), (1542, 12280), (1842, 10280), (2056, 9210), (2456, 7710), (2570, 7368), (3070, 6168), (3084, 6140), (3684, 5140), (3855, 4912), (4112, 4605)]