19459480

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1$

素因数の和:268

約数の個数: 64

約数和(自身を含む): 45606240

約数和(自身を除く): 26146760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 67, 106, 134, 137, 212, 265, 268, 274, 335, 424, 530, 536, 548, 670, 685, 1060, 1096, 1340, 1370, 2120, 2680, 2740, 3551, 5480, 7102, 7261, 9179, 14204, 14522, 17755, 18358, 28408, 29044, 35510, 36305, 36716, 45895, 58088, 71020, 72610, 73432, 91790, 142040, 145220, 183580, 290440, 367160, 486487, 972974, 1945948, 2432435, 3891896, 4864870, 9729740, 19459480]

約数ペア:

[(1, 19459480), (2, 9729740), (4, 4864870), (5, 3891896), (8, 2432435), (10, 1945948), (20, 972974), (40, 486487), (53, 367160), (67, 290440), (106, 183580), (134, 145220), (137, 142040), (212, 91790), (265, 73432), (268, 72610), (274, 71020), (335, 58088), (424, 45895), (530, 36716), (536, 36305), (548, 35510), (670, 29044), (685, 28408), (1060, 18358), (1096, 17755), (1340, 14522), (1370, 14204), (2120, 9179), (2680, 7261), (2740, 7102), (3551, 5480)]