20797838316

素因数分解:

$2^2\times 3^5\times {\mathrm{239}}^1\times {\mathrm{89527}}^1$

素因数の和:89785

約数の個数: 72

約数和(自身を含む): 54748162560

約数和(自身を除く): 33950324244

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 239, 243, 324, 478, 486, 717, 956, 972, 1434, 2151, 2868, 4302, 6453, 8604, 12906, 19359, 25812, 38718, 58077, 77436, 89527, 116154, 179054, 232308, 268581, 358108, 537162, 805743, 1074324, 1611486, 2417229, 3222972, 4834458, 7251687, 9668916, 14503374, 21396953, 21755061, 29006748, 42793906, 43510122, 64190859, 85587812, 87020244, 128381718, 192572577, 256763436, 385145154, 577717731, 770290308, 1155435462, 1733153193, 2310870924, 3466306386, 5199459579, 6932612772, 10398919158, 20797838316]

約数ペア:

[(1, 20797838316), (2, 10398919158), (3, 6932612772), (4, 5199459579), (6, 3466306386), (9, 2310870924), (12, 1733153193), (18, 1155435462), (27, 770290308), (36, 577717731), (54, 385145154), (81, 256763436), (108, 192572577), (162, 128381718), (239, 87020244), (243, 85587812), (324, 64190859), (478, 43510122), (486, 42793906), (717, 29006748), (956, 21755061), (972, 21396953), (1434, 14503374), (2151, 9668916), (2868, 7251687), (4302, 4834458), (6453, 3222972), (8604, 2417229), (12906, 1611486), (19359, 1074324), (25812, 805743), (38718, 537162), (58077, 358108), (77436, 268581), (89527, 232308), (116154, 179054)]