87012020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{3881}}^1$

素因数の和:3968

約数の個数: 48

約数和(自身を含む): 195652800

約数和(自身を除く): 108640780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 59, 76, 95, 118, 190, 236, 295, 380, 590, 1121, 1180, 2242, 3881, 4484, 5605, 7762, 11210, 15524, 19405, 22420, 38810, 73739, 77620, 147478, 228979, 294956, 368695, 457958, 737390, 915916, 1144895, 1474780, 2289790, 4350601, 4579580, 8701202, 17402404, 21753005, 43506010, 87012020]

約数ペア:

[(1, 87012020), (2, 43506010), (4, 21753005), (5, 17402404), (10, 8701202), (19, 4579580), (20, 4350601), (38, 2289790), (59, 1474780), (76, 1144895), (95, 915916), (118, 737390), (190, 457958), (236, 368695), (295, 294956), (380, 228979), (590, 147478), (1121, 77620), (1180, 73739), (2242, 38810), (3881, 22420), (4484, 19405), (5605, 15524), (7762, 11210)]