72114920

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{431}}^1$

素因数の和:578

約数の個数: 64

約数和(自身を含む): 167961600

約数和(自身を除く): 95846680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 89, 94, 178, 188, 235, 356, 376, 431, 445, 470, 712, 862, 890, 940, 1724, 1780, 1880, 2155, 3448, 3560, 4183, 4310, 8366, 8620, 16732, 17240, 20257, 20915, 33464, 38359, 40514, 41830, 76718, 81028, 83660, 101285, 153436, 162056, 167320, 191795, 202570, 306872, 383590, 405140, 767180, 810280, 1534360, 1802873, 3605746, 7211492, 9014365, 14422984, 18028730, 36057460, 72114920]

約数ペア:

[(1, 72114920), (2, 36057460), (4, 18028730), (5, 14422984), (8, 9014365), (10, 7211492), (20, 3605746), (40, 1802873), (47, 1534360), (89, 810280), (94, 767180), (178, 405140), (188, 383590), (235, 306872), (356, 202570), (376, 191795), (431, 167320), (445, 162056), (470, 153436), (712, 101285), (862, 83660), (890, 81028), (940, 76718), (1724, 41830), (1780, 40514), (1880, 38359), (2155, 33464), (3448, 20915), (3560, 20257), (4183, 17240), (4310, 16732), (8366, 8620)]