20528460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{1933}}^1$

素因数の和:2007

約数の個数: 72

約数和(自身を含む): 63357840

約数和(自身を除く): 42829380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 59, 60, 90, 118, 177, 180, 236, 295, 354, 531, 590, 708, 885, 1062, 1180, 1770, 1933, 2124, 2655, 3540, 3866, 5310, 5799, 7732, 9665, 10620, 11598, 17397, 19330, 23196, 28995, 34794, 38660, 57990, 69588, 86985, 114047, 115980, 173970, 228094, 342141, 347940, 456188, 570235, 684282, 1026423, 1140470, 1368564, 1710705, 2052846, 2280940, 3421410, 4105692, 5132115, 6842820, 10264230, 20528460]

約数ペア:

[(1, 20528460), (2, 10264230), (3, 6842820), (4, 5132115), (5, 4105692), (6, 3421410), (9, 2280940), (10, 2052846), (12, 1710705), (15, 1368564), (18, 1140470), (20, 1026423), (30, 684282), (36, 570235), (45, 456188), (59, 347940), (60, 342141), (90, 228094), (118, 173970), (177, 115980), (180, 114047), (236, 86985), (295, 69588), (354, 57990), (531, 38660), (590, 34794), (708, 28995), (885, 23196), (1062, 19330), (1180, 17397), (1770, 11598), (1933, 10620), (2124, 9665), (2655, 7732), (3540, 5799), (3866, 5310)]