65013800

素因数分解:

$2^3\times 5^2\times {\mathrm{61}}^1\times {\mathrm{73}}^2$

素因数の和:223

約数の個数: 72

約数和(自身を含む): 155768490

約数和(自身を除く): 90754690

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 61, 73, 100, 122, 146, 200, 244, 292, 305, 365, 488, 584, 610, 730, 1220, 1460, 1525, 1825, 2440, 2920, 3050, 3650, 4453, 5329, 6100, 7300, 8906, 10658, 12200, 14600, 17812, 21316, 22265, 26645, 35624, 42632, 44530, 53290, 89060, 106580, 111325, 133225, 178120, 213160, 222650, 266450, 325069, 445300, 532900, 650138, 890600, 1065800, 1300276, 1625345, 2600552, 3250690, 6501380, 8126725, 13002760, 16253450, 32506900, 65013800]

約数ペア:

[(1, 65013800), (2, 32506900), (4, 16253450), (5, 13002760), (8, 8126725), (10, 6501380), (20, 3250690), (25, 2600552), (40, 1625345), (50, 1300276), (61, 1065800), (73, 890600), (100, 650138), (122, 532900), (146, 445300), (200, 325069), (244, 266450), (292, 222650), (305, 213160), (365, 178120), (488, 133225), (584, 111325), (610, 106580), (730, 89060), (1220, 53290), (1460, 44530), (1525, 42632), (1825, 35624), (2440, 26645), (2920, 22265), (3050, 21316), (3650, 17812), (4453, 14600), (5329, 12200), (6100, 10658), (7300, 8906)]