155237380

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{12109}}^1$

素因数の和:12759

約数の個数: 24

約数和(自身を含む): 326534040

約数和(自身を除く): 171296660

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 2564, 3205, 6410, 12109, 12820, 24218, 48436, 60545, 121090, 242180, 7761869, 15523738, 31047476, 38809345, 77618690, 155237380]

約数ペア:

[(1, 155237380), (2, 77618690), (4, 38809345), (5, 31047476), (10, 15523738), (20, 7761869), (641, 242180), (1282, 121090), (2564, 60545), (3205, 48436), (6410, 24218), (12109, 12820)]