18204550

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4001}}^1$

素因数の和:4033

約数の個数: 48

約数和(自身を含む): 41684832

約数和(自身を除く): 23480282

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 70, 91, 130, 175, 182, 325, 350, 455, 650, 910, 2275, 4001, 4550, 8002, 20005, 28007, 40010, 52013, 56014, 100025, 104026, 140035, 200050, 260065, 280070, 364091, 520130, 700175, 728182, 1300325, 1400350, 1820455, 2600650, 3640910, 9102275, 18204550]

約数ペア:

[(1, 18204550), (2, 9102275), (5, 3640910), (7, 2600650), (10, 1820455), (13, 1400350), (14, 1300325), (25, 728182), (26, 700175), (35, 520130), (50, 364091), (65, 280070), (70, 260065), (91, 200050), (130, 140035), (175, 104026), (182, 100025), (325, 56014), (350, 52013), (455, 40010), (650, 28007), (910, 20005), (2275, 8002), (4001, 4550)]