137020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1$

素因数の和:70

約数の個数: 48

約数和(自身を含む): 338688

約数和(自身を除く): 201668

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 31, 34, 52, 62, 65, 68, 85, 124, 130, 155, 170, 221, 260, 310, 340, 403, 442, 527, 620, 806, 884, 1054, 1105, 1612, 2015, 2108, 2210, 2635, 4030, 4420, 5270, 6851, 8060, 10540, 13702, 27404, 34255, 68510, 137020]

約数ペア:

[(1, 137020), (2, 68510), (4, 34255), (5, 27404), (10, 13702), (13, 10540), (17, 8060), (20, 6851), (26, 5270), (31, 4420), (34, 4030), (52, 2635), (62, 2210), (65, 2108), (68, 2015), (85, 1612), (124, 1105), (130, 1054), (155, 884), (170, 806), (221, 620), (260, 527), (310, 442), (340, 403)]