203065640

素因数分解:

$2^3\times 5^1\times {\mathrm{727}}^1\times {\mathrm{6983}}^1$

素因数の和:7721

約数の個数: 32

約数和(自身を含む): 457591680

約数和(自身を除く): 254526040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 727, 1454, 2908, 3635, 5816, 6983, 7270, 13966, 14540, 27932, 29080, 34915, 55864, 69830, 139660, 279320, 5076641, 10153282, 20306564, 25383205, 40613128, 50766410, 101532820, 203065640]

約数ペア:

[(1, 203065640), (2, 101532820), (4, 50766410), (5, 40613128), (8, 25383205), (10, 20306564), (20, 10153282), (40, 5076641), (727, 279320), (1454, 139660), (2908, 69830), (3635, 55864), (5816, 34915), (6983, 29080), (7270, 27932), (13966, 14540)]