1949142760

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{571}}^1\times {\mathrm{1399}}^1$

素因数の和:2042

約数の個数: 64

約数和(自身を含む): 4468464000

約数和(自身を除く): 2519321240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 571, 610, 1142, 1220, 1399, 2284, 2440, 2798, 2855, 4568, 5596, 5710, 6995, 11192, 11420, 13990, 22840, 27980, 34831, 55960, 69662, 85339, 139324, 170678, 174155, 278648, 341356, 348310, 426695, 682712, 696620, 798829, 853390, 1393240, 1597658, 1706780, 3195316, 3413560, 3994145, 6390632, 7988290, 15976580, 31953160, 48728569, 97457138, 194914276, 243642845, 389828552, 487285690, 974571380, 1949142760]

約数ペア:

[(1, 1949142760), (2, 974571380), (4, 487285690), (5, 389828552), (8, 243642845), (10, 194914276), (20, 97457138), (40, 48728569), (61, 31953160), (122, 15976580), (244, 7988290), (305, 6390632), (488, 3994145), (571, 3413560), (610, 3195316), (1142, 1706780), (1220, 1597658), (1399, 1393240), (2284, 853390), (2440, 798829), (2798, 696620), (2855, 682712), (4568, 426695), (5596, 348310), (5710, 341356), (6995, 278648), (11192, 174155), (11420, 170678), (13990, 139324), (22840, 85339), (27980, 69662), (34831, 55960)]