648420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 1850688

約数和(自身を除く): 1202268

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 101, 107, 202, 214, 303, 321, 404, 428, 505, 535, 606, 642, 1010, 1070, 1212, 1284, 1515, 1605, 2020, 2140, 3030, 3210, 6060, 6420, 10807, 21614, 32421, 43228, 54035, 64842, 108070, 129684, 162105, 216140, 324210, 648420]

約数ペア:

[(1, 648420), (2, 324210), (3, 216140), (4, 162105), (5, 129684), (6, 108070), (10, 64842), (12, 54035), (15, 43228), (20, 32421), (30, 21614), (60, 10807), (101, 6420), (107, 6060), (202, 3210), (214, 3030), (303, 2140), (321, 2020), (404, 1605), (428, 1515), (505, 1284), (535, 1212), (606, 1070), (642, 1010)]