18996847970

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{271}}^1\times {\mathrm{997}}^1$

素因数の和:1443

約数の個数: 64

約数和(自身を含む): 35180697600

約数和(自身を除く): 16183849630

約数列:

[1, 2, 5, 10, 79, 89, 158, 178, 271, 395, 445, 542, 790, 890, 997, 1355, 1994, 2710, 4985, 7031, 9970, 14062, 21409, 24119, 35155, 42818, 48238, 70310, 78763, 88733, 107045, 120595, 157526, 177466, 214090, 241190, 270187, 393815, 443665, 540374, 787630, 887330, 1350935, 1905401, 2701870, 3810802, 7009907, 9527005, 14019814, 19054010, 21344773, 24046643, 35049535, 42689546, 48093286, 70099070, 106723865, 120233215, 213447730, 240466430, 1899684797, 3799369594, 9498423985, 18996847970]

約数ペア:

[(1, 18996847970), (2, 9498423985), (5, 3799369594), (10, 1899684797), (79, 240466430), (89, 213447730), (158, 120233215), (178, 106723865), (271, 70099070), (395, 48093286), (445, 42689546), (542, 35049535), (790, 24046643), (890, 21344773), (997, 19054010), (1355, 14019814), (1994, 9527005), (2710, 7009907), (4985, 3810802), (7031, 2701870), (9970, 1905401), (14062, 1350935), (21409, 887330), (24119, 787630), (35155, 540374), (42818, 443665), (48238, 393815), (70310, 270187), (78763, 241190), (88733, 214090), (107045, 177466), (120595, 157526)]