13001920

素因数分解:

$2^6\times 5^1\times {\mathrm{41}}^1\times {\mathrm{991}}^1$

素因数の和:1049

約数の個数: 56

約数和(自身を含む): 31747968

約数和(自身を除く): 18746048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 160, 164, 205, 320, 328, 410, 656, 820, 991, 1312, 1640, 1982, 2624, 3280, 3964, 4955, 6560, 7928, 9910, 13120, 15856, 19820, 31712, 39640, 40631, 63424, 79280, 81262, 158560, 162524, 203155, 317120, 325048, 406310, 650096, 812620, 1300192, 1625240, 2600384, 3250480, 6500960, 13001920]

約数ペア:

[(1, 13001920), (2, 6500960), (4, 3250480), (5, 2600384), (8, 1625240), (10, 1300192), (16, 812620), (20, 650096), (32, 406310), (40, 325048), (41, 317120), (64, 203155), (80, 162524), (82, 158560), (160, 81262), (164, 79280), (205, 63424), (320, 40631), (328, 39640), (410, 31712), (656, 19820), (820, 15856), (991, 13120), (1312, 9910), (1640, 7928), (1982, 6560), (2624, 4955), (3280, 3964)]