7072020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{389}}^1$

素因数の和:505

約数の個数: 72

約数和(自身を含む): 21719880

約数和(自身を除く): 14647860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 101, 180, 202, 303, 389, 404, 505, 606, 778, 909, 1010, 1167, 1212, 1515, 1556, 1818, 1945, 2020, 2334, 3030, 3501, 3636, 3890, 4545, 4668, 5835, 6060, 7002, 7780, 9090, 11670, 14004, 17505, 18180, 23340, 35010, 39289, 70020, 78578, 117867, 157156, 196445, 235734, 353601, 392890, 471468, 589335, 707202, 785780, 1178670, 1414404, 1768005, 2357340, 3536010, 7072020]

約数ペア:

[(1, 7072020), (2, 3536010), (3, 2357340), (4, 1768005), (5, 1414404), (6, 1178670), (9, 785780), (10, 707202), (12, 589335), (15, 471468), (18, 392890), (20, 353601), (30, 235734), (36, 196445), (45, 157156), (60, 117867), (90, 78578), (101, 70020), (180, 39289), (202, 35010), (303, 23340), (389, 18180), (404, 17505), (505, 14004), (606, 11670), (778, 9090), (909, 7780), (1010, 7002), (1167, 6060), (1212, 5835), (1515, 4668), (1556, 4545), (1818, 3890), (1945, 3636), (2020, 3501), (2334, 3030)]