30921920

素因数分解:

$2^6\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1361}}^1$

素因数の和:1449

約数の個数: 56

約数和(自身を含む): 74724768

約数和(自身を除く): 43802848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 142, 160, 284, 320, 355, 568, 710, 1136, 1361, 1420, 2272, 2722, 2840, 4544, 5444, 5680, 6805, 10888, 11360, 13610, 21776, 22720, 27220, 43552, 54440, 87104, 96631, 108880, 193262, 217760, 386524, 435520, 483155, 773048, 966310, 1546096, 1932620, 3092192, 3865240, 6184384, 7730480, 15460960, 30921920]

約数ペア:

[(1, 30921920), (2, 15460960), (4, 7730480), (5, 6184384), (8, 3865240), (10, 3092192), (16, 1932620), (20, 1546096), (32, 966310), (40, 773048), (64, 483155), (71, 435520), (80, 386524), (142, 217760), (160, 193262), (284, 108880), (320, 96631), (355, 87104), (568, 54440), (710, 43552), (1136, 27220), (1361, 22720), (1420, 21776), (2272, 13610), (2722, 11360), (2840, 10888), (4544, 6805), (5444, 5680)]