89872820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{863}}^1$

素因数の和:1040

約数の個数: 48

約数和(自身を含む): 195084288

約数和(自身を除く): 105211468

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 127, 164, 205, 254, 410, 508, 635, 820, 863, 1270, 1726, 2540, 3452, 4315, 5207, 8630, 10414, 17260, 20828, 26035, 35383, 52070, 70766, 104140, 109601, 141532, 176915, 219202, 353830, 438404, 548005, 707660, 1096010, 2192020, 4493641, 8987282, 17974564, 22468205, 44936410, 89872820]

約数ペア:

[(1, 89872820), (2, 44936410), (4, 22468205), (5, 17974564), (10, 8987282), (20, 4493641), (41, 2192020), (82, 1096010), (127, 707660), (164, 548005), (205, 438404), (254, 353830), (410, 219202), (508, 176915), (635, 141532), (820, 109601), (863, 104140), (1270, 70766), (1726, 52070), (2540, 35383), (3452, 26035), (4315, 20828), (5207, 17260), (8630, 10414)]