177438980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{353}}^1\times {\mathrm{613}}^1$

素因数の和:1016

約数の個数: 48

約数和(自身を含む): 383415984

約数和(自身を除く): 205977004

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 353, 410, 613, 706, 820, 1226, 1412, 1765, 2452, 3065, 3530, 6130, 7060, 12260, 14473, 25133, 28946, 50266, 57892, 72365, 100532, 125665, 144730, 216389, 251330, 289460, 432778, 502660, 865556, 1081945, 2163890, 4327780, 8871949, 17743898, 35487796, 44359745, 88719490, 177438980]

約数ペア:

[(1, 177438980), (2, 88719490), (4, 44359745), (5, 35487796), (10, 17743898), (20, 8871949), (41, 4327780), (82, 2163890), (164, 1081945), (205, 865556), (353, 502660), (410, 432778), (613, 289460), (706, 251330), (820, 216389), (1226, 144730), (1412, 125665), (1765, 100532), (2452, 72365), (3065, 57892), (3530, 50266), (6130, 28946), (7060, 25133), (12260, 14473)]