291227080

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{87719}}^1$

素因数の和:87813

約数の個数: 32

約数和(自身を含む): 663163200

約数和(自身を除く): 371936120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 87719, 175438, 350876, 438595, 701752, 877190, 1754380, 3508760, 7280677, 14561354, 29122708, 36403385, 58245416, 72806770, 145613540, 291227080]

約数ペア:

[(1, 291227080), (2, 145613540), (4, 72806770), (5, 58245416), (8, 36403385), (10, 29122708), (20, 14561354), (40, 7280677), (83, 3508760), (166, 1754380), (332, 877190), (415, 701752), (664, 438595), (830, 350876), (1660, 175438), (3320, 87719)]