15698180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{379}}^1$

素因数の和:516

約数の個数: 48

約数和(自身を含む): 35112000

約数和(自身を除く): 19413820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 109, 190, 218, 379, 380, 436, 545, 758, 1090, 1516, 1895, 2071, 2180, 3790, 4142, 7201, 7580, 8284, 10355, 14402, 20710, 28804, 36005, 41311, 41420, 72010, 82622, 144020, 165244, 206555, 413110, 784909, 826220, 1569818, 3139636, 3924545, 7849090, 15698180]

約数ペア:

[(1, 15698180), (2, 7849090), (4, 3924545), (5, 3139636), (10, 1569818), (19, 826220), (20, 784909), (38, 413110), (76, 206555), (95, 165244), (109, 144020), (190, 82622), (218, 72010), (379, 41420), (380, 41311), (436, 36005), (545, 28804), (758, 20710), (1090, 14402), (1516, 10355), (1895, 8284), (2071, 7580), (2180, 7201), (3790, 4142)]