19672540

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{277}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 42874272

約数和(自身を除く): 23201732

約数列:

[1, 2, 4, 5, 10, 20, 53, 67, 106, 134, 212, 265, 268, 277, 335, 530, 554, 670, 1060, 1108, 1340, 1385, 2770, 3551, 5540, 7102, 14204, 14681, 17755, 18559, 29362, 35510, 37118, 58724, 71020, 73405, 74236, 92795, 146810, 185590, 293620, 371180, 983627, 1967254, 3934508, 4918135, 9836270, 19672540]

約数ペア:

[(1, 19672540), (2, 9836270), (4, 4918135), (5, 3934508), (10, 1967254), (20, 983627), (53, 371180), (67, 293620), (106, 185590), (134, 146810), (212, 92795), (265, 74236), (268, 73405), (277, 71020), (335, 58724), (530, 37118), (554, 35510), (670, 29362), (1060, 18559), (1108, 17755), (1340, 14681), (1385, 14204), (2770, 7102), (3551, 5540)]