20697720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{997}}^1$

素因数の和:1184

約数の個数: 64

約数和(自身を含む): 62514720

約数和(自身を除く): 41817000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 173, 346, 519, 692, 865, 997, 1038, 1384, 1730, 1994, 2076, 2595, 2991, 3460, 3988, 4152, 4985, 5190, 5982, 6920, 7976, 9970, 10380, 11964, 14955, 19940, 20760, 23928, 29910, 39880, 59820, 119640, 172481, 344962, 517443, 689924, 862405, 1034886, 1379848, 1724810, 2069772, 2587215, 3449620, 4139544, 5174430, 6899240, 10348860, 20697720]

約数ペア:

[(1, 20697720), (2, 10348860), (3, 6899240), (4, 5174430), (5, 4139544), (6, 3449620), (8, 2587215), (10, 2069772), (12, 1724810), (15, 1379848), (20, 1034886), (24, 862405), (30, 689924), (40, 517443), (60, 344962), (120, 172481), (173, 119640), (346, 59820), (519, 39880), (692, 29910), (865, 23928), (997, 20760), (1038, 19940), (1384, 14955), (1730, 11964), (1994, 10380), (2076, 9970), (2595, 7976), (2991, 6920), (3460, 5982), (3988, 5190), (4152, 4985)]