68263260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{87517}}^1$

素因数の和:87542

約数の個数: 48

約数和(自身を含む): 205842336

約数和(自身を除く): 137579076

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 87517, 175034, 262551, 350068, 437585, 525102, 875170, 1050204, 1137721, 1312755, 1750340, 2275442, 2625510, 3413163, 4550884, 5251020, 5688605, 6826326, 11377210, 13652652, 17065815, 22754420, 34131630, 68263260]

約数ペア:

[(1, 68263260), (2, 34131630), (3, 22754420), (4, 17065815), (5, 13652652), (6, 11377210), (10, 6826326), (12, 5688605), (13, 5251020), (15, 4550884), (20, 3413163), (26, 2625510), (30, 2275442), (39, 1750340), (52, 1312755), (60, 1137721), (65, 1050204), (78, 875170), (130, 525102), (156, 437585), (195, 350068), (260, 262551), (390, 175034), (780, 87517)]