17778830

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{421}}^1$

素因数の和:572

約数の個数: 32

約数和(自身を含む): 33179328

約数和(自身を除く): 15400498

約数列:

[1, 2, 5, 10, 41, 82, 103, 205, 206, 410, 421, 515, 842, 1030, 2105, 4210, 4223, 8446, 17261, 21115, 34522, 42230, 43363, 86305, 86726, 172610, 216815, 433630, 1777883, 3555766, 8889415, 17778830]

約数ペア:

[(1, 17778830), (2, 8889415), (5, 3555766), (10, 1777883), (41, 433630), (82, 216815), (103, 172610), (205, 86726), (206, 86305), (410, 43363), (421, 42230), (515, 34522), (842, 21115), (1030, 17261), (2105, 8446), (4210, 4223)]