30891250

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{1901}}^1$

素因数の和:1936

約数の個数: 40

約数和(自身を含む): 62389404

約数和(自身を除く): 31498154

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 625, 650, 1250, 1625, 1901, 3250, 3802, 8125, 9505, 16250, 19010, 24713, 47525, 49426, 95050, 123565, 237625, 247130, 475250, 617825, 1188125, 1235650, 2376250, 3089125, 6178250, 15445625, 30891250]

約数ペア:

[(1, 30891250), (2, 15445625), (5, 6178250), (10, 3089125), (13, 2376250), (25, 1235650), (26, 1188125), (50, 617825), (65, 475250), (125, 247130), (130, 237625), (250, 123565), (325, 95050), (625, 49426), (650, 47525), (1250, 24713), (1625, 19010), (1901, 16250), (3250, 9505), (3802, 8125)]