16440975

素因数分解:

$3^4\times 5^2\times {\mathrm{23}}^1\times {\mathrm{353}}^1$

素因数の和:398

約数の個数: 60

約数和(自身を含む): 31868496

約数和(自身を除く): 15427521

約数列:

[1, 3, 5, 9, 15, 23, 25, 27, 45, 69, 75, 81, 115, 135, 207, 225, 345, 353, 405, 575, 621, 675, 1035, 1059, 1725, 1765, 1863, 2025, 3105, 3177, 5175, 5295, 8119, 8825, 9315, 9531, 15525, 15885, 24357, 26475, 28593, 40595, 46575, 47655, 73071, 79425, 121785, 142965, 202975, 219213, 238275, 365355, 608925, 657639, 714825, 1096065, 1826775, 3288195, 5480325, 16440975]

約数ペア:

[(1, 16440975), (3, 5480325), (5, 3288195), (9, 1826775), (15, 1096065), (23, 714825), (25, 657639), (27, 608925), (45, 365355), (69, 238275), (75, 219213), (81, 202975), (115, 142965), (135, 121785), (207, 79425), (225, 73071), (345, 47655), (353, 46575), (405, 40595), (575, 28593), (621, 26475), (675, 24357), (1035, 15885), (1059, 15525), (1725, 9531), (1765, 9315), (1863, 8825), (2025, 8119), (3105, 5295), (3177, 5175)]