187998975

素因数分解:

$3^4\times 5^2\times {\mathrm{263}}^1\times {\mathrm{353}}^1$

素因数の和:638

約数の個数: 60

約数和(自身を含む): 350553456

約数和(自身を除く): 162554481

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 263, 353, 405, 675, 789, 1059, 1315, 1765, 2025, 2367, 3177, 3945, 5295, 6575, 7101, 8825, 9531, 11835, 15885, 19725, 21303, 26475, 28593, 35505, 47655, 59175, 79425, 92839, 106515, 142965, 177525, 238275, 278517, 464195, 532575, 714825, 835551, 1392585, 2320975, 2506653, 4177755, 6962925, 7519959, 12533265, 20888775, 37599795, 62666325, 187998975]

約数ペア:

[(1, 187998975), (3, 62666325), (5, 37599795), (9, 20888775), (15, 12533265), (25, 7519959), (27, 6962925), (45, 4177755), (75, 2506653), (81, 2320975), (135, 1392585), (225, 835551), (263, 714825), (353, 532575), (405, 464195), (675, 278517), (789, 238275), (1059, 177525), (1315, 142965), (1765, 106515), (2025, 92839), (2367, 79425), (3177, 59175), (3945, 47655), (5295, 35505), (6575, 28593), (7101, 26475), (8825, 21303), (9531, 19725), (11835, 15885)]