18996250

素因数分解:

$2^1\times 5^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1$

素因数の和:209

約数の個数: 80

約数和(自身を含む): 44085888

約数和(自身を除く): 25089638

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 70, 91, 125, 130, 167, 175, 182, 250, 325, 334, 350, 455, 625, 650, 835, 875, 910, 1169, 1250, 1625, 1670, 1750, 2171, 2275, 2338, 3250, 4175, 4342, 4375, 4550, 5845, 8125, 8350, 8750, 10855, 11375, 11690, 15197, 16250, 20875, 21710, 22750, 29225, 30394, 41750, 54275, 56875, 58450, 75985, 104375, 108550, 113750, 146125, 151970, 208750, 271375, 292250, 379925, 542750, 730625, 759850, 1356875, 1461250, 1899625, 2713750, 3799250, 9498125, 18996250]

約数ペア:

[(1, 18996250), (2, 9498125), (5, 3799250), (7, 2713750), (10, 1899625), (13, 1461250), (14, 1356875), (25, 759850), (26, 730625), (35, 542750), (50, 379925), (65, 292250), (70, 271375), (91, 208750), (125, 151970), (130, 146125), (167, 113750), (175, 108550), (182, 104375), (250, 75985), (325, 58450), (334, 56875), (350, 54275), (455, 41750), (625, 30394), (650, 29225), (835, 22750), (875, 21710), (910, 20875), (1169, 16250), (1250, 15197), (1625, 11690), (1670, 11375), (1750, 10855), (2171, 8750), (2275, 8350), (2338, 8125), (3250, 5845), (4175, 4550), (4342, 4375)]