20091330

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{31891}}^1$

素因数の和:31911

約数の個数: 48

約数和(自身を含む): 59701824

約数和(自身を除く): 39610494

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 31891, 63782, 95673, 159455, 191346, 223237, 287019, 318910, 446474, 478365, 574038, 669711, 956730, 1116185, 1339422, 1435095, 2009133, 2232370, 2870190, 3348555, 4018266, 6697110, 10045665, 20091330]

約数ペア:

[(1, 20091330), (2, 10045665), (3, 6697110), (5, 4018266), (6, 3348555), (7, 2870190), (9, 2232370), (10, 2009133), (14, 1435095), (15, 1339422), (18, 1116185), (21, 956730), (30, 669711), (35, 574038), (42, 478365), (45, 446474), (63, 318910), (70, 287019), (90, 223237), (105, 191346), (126, 159455), (210, 95673), (315, 63782), (630, 31891)]