69895939100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{135431}}^1$

素因数の和:135855

約数の個数: 72

約数和(自身を含む): 163754081568

約数和(自身を除く): 93858142468

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 397, 650, 794, 1300, 1588, 1985, 3970, 5161, 7940, 9925, 10322, 19850, 20644, 25805, 39700, 51610, 103220, 129025, 135431, 258050, 270862, 516100, 541724, 677155, 1354310, 1760603, 2708620, 3385775, 3521206, 6771550, 7042412, 8803015, 13543100, 17606030, 35212060, 44015075, 53766107, 88030150, 107532214, 176060300, 215064428, 268830535, 537661070, 698959391, 1075322140, 1344152675, 1397918782, 2688305350, 2795837564, 3494796955, 5376610700, 6989593910, 13979187820, 17473984775, 34947969550, 69895939100]

約数ペア:

[(1, 69895939100), (2, 34947969550), (4, 17473984775), (5, 13979187820), (10, 6989593910), (13, 5376610700), (20, 3494796955), (25, 2795837564), (26, 2688305350), (50, 1397918782), (52, 1344152675), (65, 1075322140), (100, 698959391), (130, 537661070), (260, 268830535), (325, 215064428), (397, 176060300), (650, 107532214), (794, 88030150), (1300, 53766107), (1588, 44015075), (1985, 35212060), (3970, 17606030), (5161, 13543100), (7940, 8803015), (9925, 7042412), (10322, 6771550), (19850, 3521206), (20644, 3385775), (25805, 2708620), (39700, 1760603), (51610, 1354310), (103220, 677155), (129025, 541724), (135431, 516100), (258050, 270862)]