320667040

素因数分解:

$2^5\times 5^1\times {\mathrm{131}}^1\times {\mathrm{15299}}^1$

素因数の和:15445

約数の個数: 48

約数和(自身を含む): 763408800

約数和(自身を除く): 442741760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 131, 160, 262, 524, 655, 1048, 1310, 2096, 2620, 4192, 5240, 10480, 15299, 20960, 30598, 61196, 76495, 122392, 152990, 244784, 305980, 489568, 611960, 1223920, 2004169, 2447840, 4008338, 8016676, 10020845, 16033352, 20041690, 32066704, 40083380, 64133408, 80166760, 160333520, 320667040]

約数ペア:

[(1, 320667040), (2, 160333520), (4, 80166760), (5, 64133408), (8, 40083380), (10, 32066704), (16, 20041690), (20, 16033352), (32, 10020845), (40, 8016676), (80, 4008338), (131, 2447840), (160, 2004169), (262, 1223920), (524, 611960), (655, 489568), (1048, 305980), (1310, 244784), (2096, 152990), (2620, 122392), (4192, 76495), (5240, 61196), (10480, 30598), (15299, 20960)]