17947960

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1$

素因数の和:296

約数の個数: 64

約数和(自身を含む): 42325920

約数和(自身を除く): 24377960

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 67, 74, 134, 148, 181, 185, 268, 296, 335, 362, 370, 536, 670, 724, 740, 905, 1340, 1448, 1480, 1810, 2479, 2680, 3620, 4958, 6697, 7240, 9916, 12127, 12395, 13394, 19832, 24254, 24790, 26788, 33485, 48508, 49580, 53576, 60635, 66970, 97016, 99160, 121270, 133940, 242540, 267880, 448699, 485080, 897398, 1794796, 2243495, 3589592, 4486990, 8973980, 17947960]

約数ペア:

[(1, 17947960), (2, 8973980), (4, 4486990), (5, 3589592), (8, 2243495), (10, 1794796), (20, 897398), (37, 485080), (40, 448699), (67, 267880), (74, 242540), (134, 133940), (148, 121270), (181, 99160), (185, 97016), (268, 66970), (296, 60635), (335, 53576), (362, 49580), (370, 48508), (536, 33485), (670, 26788), (724, 24790), (740, 24254), (905, 19832), (1340, 13394), (1448, 12395), (1480, 12127), (1810, 9916), (2479, 7240), (2680, 6697), (3620, 4958)]