156897325

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 218458240

約数和(自身を除く): 61560915

約数列:

[1, 5, 13, 25, 43, 65, 103, 109, 215, 325, 515, 545, 559, 1075, 1339, 1417, 2575, 2725, 2795, 4429, 4687, 6695, 7085, 11227, 13975, 22145, 23435, 33475, 35425, 56135, 57577, 60931, 110725, 117175, 145951, 280675, 287885, 304655, 482761, 729755, 1439425, 1523275, 2413805, 3648775, 6275893, 12069025, 31379465, 156897325]

約数ペア:

[(1, 156897325), (5, 31379465), (13, 12069025), (25, 6275893), (43, 3648775), (65, 2413805), (103, 1523275), (109, 1439425), (215, 729755), (325, 482761), (515, 304655), (545, 287885), (559, 280675), (1075, 145951), (1339, 117175), (1417, 110725), (2575, 60931), (2725, 57577), (2795, 56135), (4429, 35425), (4687, 33475), (6695, 23435), (7085, 22145), (11227, 13975)]