80380580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{82021}}^1$

素因数の和:82044

約数の個数: 36

約数和(自身を含む): 196360668

約数和(自身を除く): 115980088

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 82021, 164042, 328084, 410105, 574147, 820210, 1148294, 1640420, 2296588, 2870735, 4019029, 5741470, 8038058, 11482940, 16076116, 20095145, 40190290, 80380580]

約数ペア:

[(1, 80380580), (2, 40190290), (4, 20095145), (5, 16076116), (7, 11482940), (10, 8038058), (14, 5741470), (20, 4019029), (28, 2870735), (35, 2296588), (49, 1640420), (70, 1148294), (98, 820210), (140, 574147), (196, 410105), (245, 328084), (490, 164042), (980, 82021)]