7981020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{439}}^1$

素因数の和:555

約数の個数: 72

約数和(自身を含む): 24504480

約数和(自身を除く): 16523460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 101, 180, 202, 303, 404, 439, 505, 606, 878, 909, 1010, 1212, 1317, 1515, 1756, 1818, 2020, 2195, 2634, 3030, 3636, 3951, 4390, 4545, 5268, 6060, 6585, 7902, 8780, 9090, 13170, 15804, 18180, 19755, 26340, 39510, 44339, 79020, 88678, 133017, 177356, 221695, 266034, 399051, 443390, 532068, 665085, 798102, 886780, 1330170, 1596204, 1995255, 2660340, 3990510, 7981020]

約数ペア:

[(1, 7981020), (2, 3990510), (3, 2660340), (4, 1995255), (5, 1596204), (6, 1330170), (9, 886780), (10, 798102), (12, 665085), (15, 532068), (18, 443390), (20, 399051), (30, 266034), (36, 221695), (45, 177356), (60, 133017), (90, 88678), (101, 79020), (180, 44339), (202, 39510), (303, 26340), (404, 19755), (439, 18180), (505, 15804), (606, 13170), (878, 9090), (909, 8780), (1010, 7902), (1212, 6585), (1317, 6060), (1515, 5268), (1756, 4545), (1818, 4390), (2020, 3951), (2195, 3636), (2634, 3030)]