140021860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1291}}^1$

素因数の和:1357

約数の個数: 96

約数和(自身を含む): 351630720

約数和(自身を除く): 211608860

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 29, 34, 44, 55, 58, 68, 85, 110, 116, 145, 170, 187, 220, 290, 319, 340, 374, 493, 580, 638, 748, 935, 986, 1276, 1291, 1595, 1870, 1972, 2465, 2582, 3190, 3740, 4930, 5164, 5423, 6380, 6455, 9860, 10846, 12910, 14201, 21692, 21947, 25820, 27115, 28402, 37439, 43894, 54230, 56804, 71005, 74878, 87788, 108460, 109735, 142010, 149756, 187195, 219470, 241417, 284020, 374390, 411829, 438940, 482834, 636463, 748780, 823658, 965668, 1207085, 1272926, 1647316, 2059145, 2414170, 2545852, 3182315, 4118290, 4828340, 6364630, 7001093, 8236580, 12729260, 14002186, 28004372, 35005465, 70010930, 140021860]

約数ペア:

[(1, 140021860), (2, 70010930), (4, 35005465), (5, 28004372), (10, 14002186), (11, 12729260), (17, 8236580), (20, 7001093), (22, 6364630), (29, 4828340), (34, 4118290), (44, 3182315), (55, 2545852), (58, 2414170), (68, 2059145), (85, 1647316), (110, 1272926), (116, 1207085), (145, 965668), (170, 823658), (187, 748780), (220, 636463), (290, 482834), (319, 438940), (340, 411829), (374, 374390), (493, 284020), (580, 241417), (638, 219470), (748, 187195), (935, 149756), (986, 142010), (1276, 109735), (1291, 108460), (1595, 87788), (1870, 74878), (1972, 71005), (2465, 56804), (2582, 54230), (3190, 43894), (3740, 37439), (4930, 28402), (5164, 27115), (5423, 25820), (6380, 21947), (6455, 21692), (9860, 14201), (10846, 12910)]