661976840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{2364203}}^1$

素因数の和:2364221

約数の個数: 32

約数和(自身を含む): 1702226880

約数和(自身を除く): 1040250040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 2364203, 4728406, 9456812, 11821015, 16549421, 18913624, 23642030, 33098842, 47284060, 66197684, 82747105, 94568120, 132395368, 165494210, 330988420, 661976840]

約数ペア:

[(1, 661976840), (2, 330988420), (4, 165494210), (5, 132395368), (7, 94568120), (8, 82747105), (10, 66197684), (14, 47284060), (20, 33098842), (28, 23642030), (35, 18913624), (40, 16549421), (56, 11821015), (70, 9456812), (140, 4728406), (280, 2364203)]