18523640

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{167}}^1$

素因数の和:284

約数の個数: 64

約数和(自身を含む): 43545600

約数和(自身を除く): 25021960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 59, 94, 118, 167, 188, 235, 236, 295, 334, 376, 470, 472, 590, 668, 835, 940, 1180, 1336, 1670, 1880, 2360, 2773, 3340, 5546, 6680, 7849, 9853, 11092, 13865, 15698, 19706, 22184, 27730, 31396, 39245, 39412, 49265, 55460, 62792, 78490, 78824, 98530, 110920, 156980, 197060, 313960, 394120, 463091, 926182, 1852364, 2315455, 3704728, 4630910, 9261820, 18523640]

約数ペア:

[(1, 18523640), (2, 9261820), (4, 4630910), (5, 3704728), (8, 2315455), (10, 1852364), (20, 926182), (40, 463091), (47, 394120), (59, 313960), (94, 197060), (118, 156980), (167, 110920), (188, 98530), (235, 78824), (236, 78490), (295, 62792), (334, 55460), (376, 49265), (470, 39412), (472, 39245), (590, 31396), (668, 27730), (835, 22184), (940, 19706), (1180, 15698), (1336, 13865), (1670, 11092), (1880, 9853), (2360, 7849), (2773, 6680), (3340, 5546)]