18009760

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3631}}^1$

素因数の和:3677

約数の個数: 48

約数和(自身を含む): 43932672

約数和(自身を除く): 25922912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 3631, 4960, 7262, 14524, 18155, 29048, 36310, 58096, 72620, 112561, 116192, 145240, 225122, 290480, 450244, 562805, 580960, 900488, 1125610, 1800976, 2251220, 3601952, 4502440, 9004880, 18009760]

約数ペア:

[(1, 18009760), (2, 9004880), (4, 4502440), (5, 3601952), (8, 2251220), (10, 1800976), (16, 1125610), (20, 900488), (31, 580960), (32, 562805), (40, 450244), (62, 290480), (80, 225122), (124, 145240), (155, 116192), (160, 112561), (248, 72620), (310, 58096), (496, 36310), (620, 29048), (992, 18155), (1240, 14524), (2480, 7262), (3631, 4960)]