161321960

素因数分解:

$2^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{22531}}^1$

素因数の和:22721

約数の個数: 32

約数和(自身を含む): 365018400

約数和(自身を除く): 203696440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 179, 358, 716, 895, 1432, 1790, 3580, 7160, 22531, 45062, 90124, 112655, 180248, 225310, 450620, 901240, 4033049, 8066098, 16132196, 20165245, 32264392, 40330490, 80660980, 161321960]

約数ペア:

[(1, 161321960), (2, 80660980), (4, 40330490), (5, 32264392), (8, 20165245), (10, 16132196), (20, 8066098), (40, 4033049), (179, 901240), (358, 450620), (716, 225310), (895, 180248), (1432, 112655), (1790, 90124), (3580, 45062), (7160, 22531)]