81718186

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1\times {\mathrm{401}}^1$

素因数の和:630

約数の個数: 32

約数和(自身を含む): 137194560

約数和(自身を除く): 55476374

約数列:

[1, 2, 11, 22, 59, 118, 157, 314, 401, 649, 802, 1298, 1727, 3454, 4411, 8822, 9263, 18526, 23659, 47318, 62957, 101893, 125914, 203786, 260249, 520498, 692527, 1385054, 3714463, 7428926, 40859093, 81718186]

約数ペア:

[(1, 81718186), (2, 40859093), (11, 7428926), (22, 3714463), (59, 1385054), (118, 692527), (157, 520498), (314, 260249), (401, 203786), (649, 125914), (802, 101893), (1298, 62957), (1727, 47318), (3454, 23659), (4411, 18526), (8822, 9263)]