8181200

素因数分解:

$2^4\times 5^2\times {\mathrm{113}}^1\times {\mathrm{181}}^1$

素因数の和:312

約数の個数: 60

約数和(自身を含む): 19938828

約数和(自身を除く): 11757628

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 113, 181, 200, 226, 362, 400, 452, 565, 724, 904, 905, 1130, 1448, 1808, 1810, 2260, 2825, 2896, 3620, 4520, 4525, 5650, 7240, 9040, 9050, 11300, 14480, 18100, 20453, 22600, 36200, 40906, 45200, 72400, 81812, 102265, 163624, 204530, 327248, 409060, 511325, 818120, 1022650, 1636240, 2045300, 4090600, 8181200]

約数ペア:

[(1, 8181200), (2, 4090600), (4, 2045300), (5, 1636240), (8, 1022650), (10, 818120), (16, 511325), (20, 409060), (25, 327248), (40, 204530), (50, 163624), (80, 102265), (100, 81812), (113, 72400), (181, 45200), (200, 40906), (226, 36200), (362, 22600), (400, 20453), (452, 18100), (565, 14480), (724, 11300), (904, 9050), (905, 9040), (1130, 7240), (1448, 5650), (1808, 4525), (1810, 4520), (2260, 3620), (2825, 2896)]