19995930

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2389}}^1$

素因数の和:2436

約数の個数: 64

約数和(自身を含む): 55065600

約数和(自身を除く): 35069670

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 31, 45, 54, 62, 90, 93, 135, 155, 186, 270, 279, 310, 465, 558, 837, 930, 1395, 1674, 2389, 2790, 4185, 4778, 7167, 8370, 11945, 14334, 21501, 23890, 35835, 43002, 64503, 71670, 74059, 107505, 129006, 148118, 215010, 222177, 322515, 370295, 444354, 645030, 666531, 740590, 1110885, 1333062, 1999593, 2221770, 3332655, 3999186, 6665310, 9997965, 19995930]

約数ペア:

[(1, 19995930), (2, 9997965), (3, 6665310), (5, 3999186), (6, 3332655), (9, 2221770), (10, 1999593), (15, 1333062), (18, 1110885), (27, 740590), (30, 666531), (31, 645030), (45, 444354), (54, 370295), (62, 322515), (90, 222177), (93, 215010), (135, 148118), (155, 129006), (186, 107505), (270, 74059), (279, 71670), (310, 64503), (465, 43002), (558, 35835), (837, 23890), (930, 21501), (1395, 14334), (1674, 11945), (2389, 8370), (2790, 7167), (4185, 4778)]