38984940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1987}}^1$

素因数の和:2111

約数の個数: 72

約数和(自身を含む): 119399280

約数和(自身を除く): 80414340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 109, 180, 218, 327, 436, 545, 654, 981, 1090, 1308, 1635, 1962, 1987, 2180, 3270, 3924, 3974, 4905, 5961, 6540, 7948, 9810, 9935, 11922, 17883, 19620, 19870, 23844, 29805, 35766, 39740, 59610, 71532, 89415, 119220, 178830, 216583, 357660, 433166, 649749, 866332, 1082915, 1299498, 1949247, 2165830, 2598996, 3248745, 3898494, 4331660, 6497490, 7796988, 9746235, 12994980, 19492470, 38984940]

約数ペア:

[(1, 38984940), (2, 19492470), (3, 12994980), (4, 9746235), (5, 7796988), (6, 6497490), (9, 4331660), (10, 3898494), (12, 3248745), (15, 2598996), (18, 2165830), (20, 1949247), (30, 1299498), (36, 1082915), (45, 866332), (60, 649749), (90, 433166), (109, 357660), (180, 216583), (218, 178830), (327, 119220), (436, 89415), (545, 71532), (654, 59610), (981, 39740), (1090, 35766), (1308, 29805), (1635, 23844), (1962, 19870), (1987, 19620), (2180, 17883), (3270, 11922), (3924, 9935), (3974, 9810), (4905, 7948), (5961, 6540)]