203478940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{4391}}^1$

素因数の和:4738

約数の個数: 48

約数和(自身を含む): 489936384

約数和(自身を除く): 286457444

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 331, 662, 1324, 1655, 2317, 3310, 4391, 4634, 6620, 8782, 9268, 11585, 17564, 21955, 23170, 30737, 43910, 46340, 61474, 87820, 122948, 153685, 307370, 614740, 1453421, 2906842, 5813684, 7267105, 10173947, 14534210, 20347894, 29068420, 40695788, 50869735, 101739470, 203478940]

約数ペア:

[(1, 203478940), (2, 101739470), (4, 50869735), (5, 40695788), (7, 29068420), (10, 20347894), (14, 14534210), (20, 10173947), (28, 7267105), (35, 5813684), (70, 2906842), (140, 1453421), (331, 614740), (662, 307370), (1324, 153685), (1655, 122948), (2317, 87820), (3310, 61474), (4391, 46340), (4634, 43910), (6620, 30737), (8782, 23170), (9268, 21955), (11585, 17564)]