40959920

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{6481}}^1$

素因数の和:6573

約数の個数: 40

約数和(自身を含む): 96452160

約数和(自身を除く): 55492240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 6481, 12962, 25924, 32405, 51848, 64810, 103696, 129620, 259240, 511999, 518480, 1023998, 2047996, 2559995, 4095992, 5119990, 8191984, 10239980, 20479960, 40959920]

約数ペア:

[(1, 40959920), (2, 20479960), (4, 10239980), (5, 8191984), (8, 5119990), (10, 4095992), (16, 2559995), (20, 2047996), (40, 1023998), (79, 518480), (80, 511999), (158, 259240), (316, 129620), (395, 103696), (632, 64810), (790, 51848), (1264, 32405), (1580, 25924), (3160, 12962), (6320, 6481)]