81766140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{499}}^1\times {\mathrm{2731}}^1$

素因数の和:3242

約数の個数: 48

約数和(自身を含む): 229488000

約数和(自身を除く): 147721860

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 499, 998, 1497, 1996, 2495, 2731, 2994, 4990, 5462, 5988, 7485, 8193, 9980, 10924, 13655, 14970, 16386, 27310, 29940, 32772, 40965, 54620, 81930, 163860, 1362769, 2725538, 4088307, 5451076, 6813845, 8176614, 13627690, 16353228, 20441535, 27255380, 40883070, 81766140]

約数ペア:

[(1, 81766140), (2, 40883070), (3, 27255380), (4, 20441535), (5, 16353228), (6, 13627690), (10, 8176614), (12, 6813845), (15, 5451076), (20, 4088307), (30, 2725538), (60, 1362769), (499, 163860), (998, 81930), (1497, 54620), (1996, 40965), (2495, 32772), (2731, 29940), (2994, 27310), (4990, 16386), (5462, 14970), (5988, 13655), (7485, 10924), (8193, 9980)]