2018648600

素因数分解:

$2^3\times 5^2\times {\mathrm{61}}^1\times {\mathrm{165463}}^1$

素因数の和:165540

約数の個数: 48

約数和(自身を含む): 4770327120

約数和(自身を除く): 2751678520

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 61, 100, 122, 200, 244, 305, 488, 610, 1220, 1525, 2440, 3050, 6100, 12200, 165463, 330926, 661852, 827315, 1323704, 1654630, 3309260, 4136575, 6618520, 8273150, 10093243, 16546300, 20186486, 33092600, 40372972, 50466215, 80745944, 100932430, 201864860, 252331075, 403729720, 504662150, 1009324300, 2018648600]

約数ペア:

[(1, 2018648600), (2, 1009324300), (4, 504662150), (5, 403729720), (8, 252331075), (10, 201864860), (20, 100932430), (25, 80745944), (40, 50466215), (50, 40372972), (61, 33092600), (100, 20186486), (122, 16546300), (200, 10093243), (244, 8273150), (305, 6618520), (488, 4136575), (610, 3309260), (1220, 1654630), (1525, 1323704), (2440, 827315), (3050, 661852), (6100, 330926), (12200, 165463)]