18880160

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{313}}^1$

素因数の和:370

約数の個数: 96

約数和(自身を含む): 49850640

約数和(自身を除く): 30970480

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 29, 32, 40, 52, 58, 65, 80, 104, 116, 130, 145, 160, 208, 232, 260, 290, 313, 377, 416, 464, 520, 580, 626, 754, 928, 1040, 1160, 1252, 1508, 1565, 1885, 2080, 2320, 2504, 3016, 3130, 3770, 4069, 4640, 5008, 6032, 6260, 7540, 8138, 9077, 10016, 12064, 12520, 15080, 16276, 18154, 20345, 25040, 30160, 32552, 36308, 40690, 45385, 50080, 60320, 65104, 72616, 81380, 90770, 118001, 130208, 145232, 162760, 181540, 236002, 290464, 325520, 363080, 472004, 590005, 651040, 726160, 944008, 1180010, 1452320, 1888016, 2360020, 3776032, 4720040, 9440080, 18880160]

約数ペア:

[(1, 18880160), (2, 9440080), (4, 4720040), (5, 3776032), (8, 2360020), (10, 1888016), (13, 1452320), (16, 1180010), (20, 944008), (26, 726160), (29, 651040), (32, 590005), (40, 472004), (52, 363080), (58, 325520), (65, 290464), (80, 236002), (104, 181540), (116, 162760), (130, 145232), (145, 130208), (160, 118001), (208, 90770), (232, 81380), (260, 72616), (290, 65104), (313, 60320), (377, 50080), (416, 45385), (464, 40690), (520, 36308), (580, 32552), (626, 30160), (754, 25040), (928, 20345), (1040, 18154), (1160, 16276), (1252, 15080), (1508, 12520), (1565, 12064), (1885, 10016), (2080, 9077), (2320, 8138), (2504, 7540), (3016, 6260), (3130, 6032), (3770, 5008), (4069, 4640)]