1405664

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:163

約数の個数: 48

約数和(自身を含む): 3104640

約数和(自身を除く): 1698976

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 104, 109, 124, 208, 218, 248, 403, 416, 436, 496, 806, 872, 992, 1417, 1612, 1744, 2834, 3224, 3379, 3488, 5668, 6448, 6758, 11336, 12896, 13516, 22672, 27032, 43927, 45344, 54064, 87854, 108128, 175708, 351416, 702832, 1405664]

約数ペア:

[(1, 1405664), (2, 702832), (4, 351416), (8, 175708), (13, 108128), (16, 87854), (26, 54064), (31, 45344), (32, 43927), (52, 27032), (62, 22672), (104, 13516), (109, 12896), (124, 11336), (208, 6758), (218, 6448), (248, 5668), (403, 3488), (416, 3379), (436, 3224), (496, 2834), (806, 1744), (872, 1612), (992, 1417)]