140757980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{20639}}^1$

素因数の和:20690

約数の個数: 48

約数和(自身を含む): 332881920

約数和(自身を除く): 192123940

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 3410, 6820, 20639, 41278, 82556, 103195, 206390, 227029, 412780, 454058, 639809, 908116, 1135145, 1279618, 2270290, 2559236, 3199045, 4540580, 6398090, 7037899, 12796180, 14075798, 28151596, 35189495, 70378990, 140757980]

約数ペア:

[(1, 140757980), (2, 70378990), (4, 35189495), (5, 28151596), (10, 14075798), (11, 12796180), (20, 7037899), (22, 6398090), (31, 4540580), (44, 3199045), (55, 2559236), (62, 2270290), (110, 1279618), (124, 1135145), (155, 908116), (220, 639809), (310, 454058), (341, 412780), (620, 227029), (682, 206390), (1364, 103195), (1705, 82556), (3410, 41278), (6820, 20639)]