18697520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{12301}}^1$

素因数の和:12333

約数の個数: 40

約数和(自身を含む): 45763440

約数和(自身を除く): 27065920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 12301, 24602, 49204, 61505, 98408, 123010, 196816, 233719, 246020, 467438, 492040, 934876, 984080, 1168595, 1869752, 2337190, 3739504, 4674380, 9348760, 18697520]

約数ペア:

[(1, 18697520), (2, 9348760), (4, 4674380), (5, 3739504), (8, 2337190), (10, 1869752), (16, 1168595), (19, 984080), (20, 934876), (38, 492040), (40, 467438), (76, 246020), (80, 233719), (95, 196816), (152, 123010), (190, 98408), (304, 61505), (380, 49204), (760, 24602), (1520, 12301)]