162801980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{18049}}^1$

素因数の和:18110

約数の個数: 48

約数和(自身を含む): 382082400

約数和(自身を除く): 219280420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1804, 2255, 4510, 9020, 18049, 36098, 72196, 90245, 180490, 198539, 360980, 397078, 740009, 794156, 992695, 1480018, 1985390, 2960036, 3700045, 3970780, 7400090, 8140099, 14800180, 16280198, 32560396, 40700495, 81400990, 162801980]

約数ペア:

[(1, 162801980), (2, 81400990), (4, 40700495), (5, 32560396), (10, 16280198), (11, 14800180), (20, 8140099), (22, 7400090), (41, 3970780), (44, 3700045), (55, 2960036), (82, 1985390), (110, 1480018), (164, 992695), (205, 794156), (220, 740009), (410, 397078), (451, 360980), (820, 198539), (902, 180490), (1804, 90245), (2255, 72196), (4510, 36098), (9020, 18049)]