12102220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{523}}^1$

素因数の和:634

約数の個数: 48

約数和(自身を含む): 27730080

約数和(自身を除く): 15627860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 178, 260, 356, 445, 523, 890, 1046, 1157, 1780, 2092, 2314, 2615, 4628, 5230, 5785, 6799, 10460, 11570, 13598, 23140, 27196, 33995, 46547, 67990, 93094, 135980, 186188, 232735, 465470, 605111, 930940, 1210222, 2420444, 3025555, 6051110, 12102220]

約数ペア:

[(1, 12102220), (2, 6051110), (4, 3025555), (5, 2420444), (10, 1210222), (13, 930940), (20, 605111), (26, 465470), (52, 232735), (65, 186188), (89, 135980), (130, 93094), (178, 67990), (260, 46547), (356, 33995), (445, 27196), (523, 23140), (890, 13598), (1046, 11570), (1157, 10460), (1780, 6799), (2092, 5785), (2314, 5230), (2615, 4628)]