197780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:80

約数の個数: 48

約数和(自身を含む): 483840

約数和(自身を除く): 286060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 31, 44, 55, 58, 62, 110, 116, 124, 145, 155, 220, 290, 310, 319, 341, 580, 620, 638, 682, 899, 1276, 1364, 1595, 1705, 1798, 3190, 3410, 3596, 4495, 6380, 6820, 8990, 9889, 17980, 19778, 39556, 49445, 98890, 197780]

約数ペア:

[(1, 197780), (2, 98890), (4, 49445), (5, 39556), (10, 19778), (11, 17980), (20, 9889), (22, 8990), (29, 6820), (31, 6380), (44, 4495), (55, 3596), (58, 3410), (62, 3190), (110, 1798), (116, 1705), (124, 1595), (145, 1364), (155, 1276), (220, 899), (290, 682), (310, 638), (319, 620), (341, 580)]