20597490

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{431}}^1$

素因数の和:509

約数の個数: 80

約数和(自身を含む): 56453760

約数和(自身を除く): 35856270

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 59, 81, 90, 118, 135, 162, 177, 270, 295, 354, 405, 431, 531, 590, 810, 862, 885, 1062, 1293, 1593, 1770, 2155, 2586, 2655, 3186, 3879, 4310, 4779, 5310, 6465, 7758, 7965, 9558, 11637, 12930, 15930, 19395, 23274, 23895, 25429, 34911, 38790, 47790, 50858, 58185, 69822, 76287, 116370, 127145, 152574, 174555, 228861, 254290, 349110, 381435, 457722, 686583, 762870, 1144305, 1373166, 2059749, 2288610, 3432915, 4119498, 6865830, 10298745, 20597490]

約数ペア:

[(1, 20597490), (2, 10298745), (3, 6865830), (5, 4119498), (6, 3432915), (9, 2288610), (10, 2059749), (15, 1373166), (18, 1144305), (27, 762870), (30, 686583), (45, 457722), (54, 381435), (59, 349110), (81, 254290), (90, 228861), (118, 174555), (135, 152574), (162, 127145), (177, 116370), (270, 76287), (295, 69822), (354, 58185), (405, 50858), (431, 47790), (531, 38790), (590, 34911), (810, 25429), (862, 23895), (885, 23274), (1062, 19395), (1293, 15930), (1593, 12930), (1770, 11637), (2155, 9558), (2586, 7965), (2655, 7758), (3186, 6465), (3879, 5310), (4310, 4779)]