408020140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{2063}}^1$

素因数の和:2143

約数の個数: 96

約数和(自身を含む): 998645760

約数和(自身を除く): 590625620

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, 2063, 3190, 3410, 3596, 4126, 4495, 6380, 6820, 8252, 8990, 9889, 10315, 17980, 19778, 20630, 22693, 39556, 41260, 45386, 49445, 59827, 63953, 90772, 98890, 113465, 119654, 127906, 197780, 226930, 239308, 255812, 299135, 319765, 453860, 598270, 639530, 658097, 703483, 1196540, 1279060, 1316194, 1406966, 1854637, 2632388, 2813932, 3290485, 3517415, 3709274, 6580970, 7034830, 7418548, 9273185, 13161940, 14069660, 18546370, 20401007, 37092740, 40802014, 81604028, 102005035, 204010070, 408020140]

約数ペア:

[(1, 408020140), (2, 204010070), (4, 102005035), (5, 81604028), (10, 40802014), (11, 37092740), (20, 20401007), (22, 18546370), (29, 14069660), (31, 13161940), (44, 9273185), (55, 7418548), (58, 7034830), (62, 6580970), (110, 3709274), (116, 3517415), (124, 3290485), (145, 2813932), (155, 2632388), (220, 1854637), (290, 1406966), (310, 1316194), (319, 1279060), (341, 1196540), (580, 703483), (620, 658097), (638, 639530), (682, 598270), (899, 453860), (1276, 319765), (1364, 299135), (1595, 255812), (1705, 239308), (1798, 226930), (2063, 197780), (3190, 127906), (3410, 119654), (3596, 113465), (4126, 98890), (4495, 90772), (6380, 63953), (6820, 59827), (8252, 49445), (8990, 45386), (9889, 41260), (10315, 39556), (17980, 22693), (19778, 20630)]