28405845

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{823}}^1$

素因数の和:906

約数の個数: 48

約数和(自身を含む): 53988480

約数和(自身を除く): 25582635

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 59, 65, 117, 177, 195, 295, 531, 585, 767, 823, 885, 2301, 2469, 2655, 3835, 4115, 6903, 7407, 10699, 11505, 12345, 32097, 34515, 37035, 48557, 53495, 96291, 145671, 160485, 242785, 437013, 481455, 631241, 728355, 1893723, 2185065, 3156205, 5681169, 9468615, 28405845]

約数ペア:

[(1, 28405845), (3, 9468615), (5, 5681169), (9, 3156205), (13, 2185065), (15, 1893723), (39, 728355), (45, 631241), (59, 481455), (65, 437013), (117, 242785), (177, 160485), (195, 145671), (295, 96291), (531, 53495), (585, 48557), (767, 37035), (823, 34515), (885, 32097), (2301, 12345), (2469, 11505), (2655, 10699), (3835, 7407), (4115, 6903)]