131167980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{3049}}^1$

素因数の和:3303

約数の個数: 72

約数和(自身を含む): 399672000

約数和(自身を除く): 268504020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 239, 478, 717, 956, 1195, 1434, 2151, 2390, 2868, 3049, 3585, 4302, 4780, 6098, 7170, 8604, 9147, 10755, 12196, 14340, 15245, 18294, 21510, 27441, 30490, 36588, 43020, 45735, 54882, 60980, 91470, 109764, 137205, 182940, 274410, 548820, 728711, 1457422, 2186133, 2914844, 3643555, 4372266, 6558399, 7287110, 8744532, 10930665, 13116798, 14574220, 21861330, 26233596, 32791995, 43722660, 65583990, 131167980]

約数ペア:

[(1, 131167980), (2, 65583990), (3, 43722660), (4, 32791995), (5, 26233596), (6, 21861330), (9, 14574220), (10, 13116798), (12, 10930665), (15, 8744532), (18, 7287110), (20, 6558399), (30, 4372266), (36, 3643555), (45, 2914844), (60, 2186133), (90, 1457422), (180, 728711), (239, 548820), (478, 274410), (717, 182940), (956, 137205), (1195, 109764), (1434, 91470), (2151, 60980), (2390, 54882), (2868, 45735), (3049, 43020), (3585, 36588), (4302, 30490), (4780, 27441), (6098, 21510), (7170, 18294), (8604, 15245), (9147, 14340), (10755, 12196)]