13043840

素因数分解:

$2^7\times 5^1\times {\mathrm{89}}^1\times {\mathrm{229}}^1$

素因数の和:337

約数の個数: 64

約数和(自身を含む): 31671000

約数和(自身を除く): 18627160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 128, 160, 178, 229, 320, 356, 445, 458, 640, 712, 890, 916, 1145, 1424, 1780, 1832, 2290, 2848, 3560, 3664, 4580, 5696, 7120, 7328, 9160, 11392, 14240, 14656, 18320, 20381, 28480, 29312, 36640, 40762, 56960, 73280, 81524, 101905, 146560, 163048, 203810, 326096, 407620, 652192, 815240, 1304384, 1630480, 2608768, 3260960, 6521920, 13043840]

約数ペア:

[(1, 13043840), (2, 6521920), (4, 3260960), (5, 2608768), (8, 1630480), (10, 1304384), (16, 815240), (20, 652192), (32, 407620), (40, 326096), (64, 203810), (80, 163048), (89, 146560), (128, 101905), (160, 81524), (178, 73280), (229, 56960), (320, 40762), (356, 36640), (445, 29312), (458, 28480), (640, 20381), (712, 18320), (890, 14656), (916, 14240), (1145, 11392), (1424, 9160), (1780, 7328), (1832, 7120), (2290, 5696), (2848, 4580), (3560, 3664)]