78706420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{2939}}^1$

素因数の和:3064

約数の個数: 48

約数和(自身を含む): 179786880

約数和(自身を除く): 101080460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 103, 130, 206, 260, 412, 515, 1030, 1339, 2060, 2678, 2939, 5356, 5878, 6695, 11756, 13390, 14695, 26780, 29390, 38207, 58780, 76414, 152828, 191035, 302717, 382070, 605434, 764140, 1210868, 1513585, 3027170, 3935321, 6054340, 7870642, 15741284, 19676605, 39353210, 78706420]

約数ペア:

[(1, 78706420), (2, 39353210), (4, 19676605), (5, 15741284), (10, 7870642), (13, 6054340), (20, 3935321), (26, 3027170), (52, 1513585), (65, 1210868), (103, 764140), (130, 605434), (206, 382070), (260, 302717), (412, 191035), (515, 152828), (1030, 76414), (1339, 58780), (2060, 38207), (2678, 29390), (2939, 26780), (5356, 14695), (5878, 13390), (6695, 11756)]