219979920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{916583}}^1$

素因数の和:916599

約数の個数: 40

約数和(自身を含む): 681938496

約数和(自身を除く): 461958576

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 916583, 1833166, 2749749, 3666332, 4582915, 5499498, 7332664, 9165830, 10998996, 13748745, 14665328, 18331660, 21997992, 27497490, 36663320, 43995984, 54994980, 73326640, 109989960, 219979920]

約数ペア:

[(1, 219979920), (2, 109989960), (3, 73326640), (4, 54994980), (5, 43995984), (6, 36663320), (8, 27497490), (10, 21997992), (12, 18331660), (15, 14665328), (16, 13748745), (20, 10998996), (24, 9165830), (30, 7332664), (40, 5499498), (48, 4582915), (60, 3666332), (80, 2749749), (120, 1833166), (240, 916583)]