20707380

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1237}}^1$

素因数の和:1286

約数の個数: 96

約数和(自身を含む): 66554880

約数和(自身を除く): 45847500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 45, 54, 60, 62, 90, 93, 108, 124, 135, 155, 180, 186, 270, 279, 310, 372, 465, 540, 558, 620, 837, 930, 1116, 1237, 1395, 1674, 1860, 2474, 2790, 3348, 3711, 4185, 4948, 5580, 6185, 7422, 8370, 11133, 12370, 14844, 16740, 18555, 22266, 24740, 33399, 37110, 38347, 44532, 55665, 66798, 74220, 76694, 111330, 115041, 133596, 153388, 166995, 191735, 222660, 230082, 333990, 345123, 383470, 460164, 575205, 667980, 690246, 766940, 1035369, 1150410, 1380492, 1725615, 2070738, 2300820, 3451230, 4141476, 5176845, 6902460, 10353690, 20707380]

約数ペア:

[(1, 20707380), (2, 10353690), (3, 6902460), (4, 5176845), (5, 4141476), (6, 3451230), (9, 2300820), (10, 2070738), (12, 1725615), (15, 1380492), (18, 1150410), (20, 1035369), (27, 766940), (30, 690246), (31, 667980), (36, 575205), (45, 460164), (54, 383470), (60, 345123), (62, 333990), (90, 230082), (93, 222660), (108, 191735), (124, 166995), (135, 153388), (155, 133596), (180, 115041), (186, 111330), (270, 76694), (279, 74220), (310, 66798), (372, 55665), (465, 44532), (540, 38347), (558, 37110), (620, 33399), (837, 24740), (930, 22266), (1116, 18555), (1237, 16740), (1395, 14844), (1674, 12370), (1860, 11133), (2474, 8370), (2790, 7422), (3348, 6185), (3711, 5580), (4185, 4948)]