20252505

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{401}}^1$

素因数の和:466

約数の個数: 64

約数和(自身を含む): 41061888

約数和(自身を除く): 20809383

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 37, 39, 65, 91, 105, 111, 185, 195, 259, 273, 401, 455, 481, 555, 777, 1203, 1295, 1365, 1443, 2005, 2405, 2807, 3367, 3885, 5213, 6015, 7215, 8421, 10101, 14035, 14837, 15639, 16835, 26065, 36491, 42105, 44511, 50505, 74185, 78195, 103859, 109473, 182455, 192881, 222555, 311577, 519295, 547365, 578643, 964405, 1350167, 1557885, 2893215, 4050501, 6750835, 20252505]

約数ペア:

[(1, 20252505), (3, 6750835), (5, 4050501), (7, 2893215), (13, 1557885), (15, 1350167), (21, 964405), (35, 578643), (37, 547365), (39, 519295), (65, 311577), (91, 222555), (105, 192881), (111, 182455), (185, 109473), (195, 103859), (259, 78195), (273, 74185), (401, 50505), (455, 44511), (481, 42105), (555, 36491), (777, 26065), (1203, 16835), (1295, 15639), (1365, 14837), (1443, 14035), (2005, 10101), (2405, 8421), (2807, 7215), (3367, 6015), (3885, 5213)]