646898260

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{563}}^1\times {\mathrm{787}}^1$

素因数の和:1432

約数の個数: 48

約数和(自身を含む): 1381294656

約数和(自身を除く): 734396396

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 563, 730, 787, 1126, 1460, 1574, 2252, 2815, 3148, 3935, 5630, 7870, 11260, 15740, 41099, 57451, 82198, 114902, 164396, 205495, 229804, 287255, 410990, 443081, 574510, 821980, 886162, 1149020, 1772324, 2215405, 4430810, 8861620, 32344913, 64689826, 129379652, 161724565, 323449130, 646898260]

約数ペア:

[(1, 646898260), (2, 323449130), (4, 161724565), (5, 129379652), (10, 64689826), (20, 32344913), (73, 8861620), (146, 4430810), (292, 2215405), (365, 1772324), (563, 1149020), (730, 886162), (787, 821980), (1126, 574510), (1460, 443081), (1574, 410990), (2252, 287255), (2815, 229804), (3148, 205495), (3935, 164396), (5630, 114902), (7870, 82198), (11260, 57451), (15740, 41099)]