640017136304

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7121}}^1\times {\mathrm{61729}}^1$

素因数の和:68878

約数の個数: 80

約数和(自身を含む): 1526433760320

約数和(自身を除く): 886416624016

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 7121, 14242, 28484, 49847, 56968, 61729, 92573, 99694, 113936, 123458, 185146, 199388, 246916, 370292, 398776, 432103, 493832, 648011, 740584, 797552, 802477, 864206, 987664, 1296022, 1481168, 1604954, 1728412, 2592044, 3209908, 3456824, 5184088, 5617339, 6419816, 6913648, 10368176, 11234678, 12839632, 22469356, 44938712, 89877424, 439572209, 879144418, 1758288836, 3077005463, 3516577672, 5714438717, 6154010926, 7033155344, 11428877434, 12308021852, 22857754868, 24616043704, 40001071019, 45715509736, 49232087408, 80002142038, 91431019472, 160004284076, 320008568152, 640017136304]

約数ペア:

[(1, 640017136304), (2, 320008568152), (4, 160004284076), (7, 91431019472), (8, 80002142038), (13, 49232087408), (14, 45715509736), (16, 40001071019), (26, 24616043704), (28, 22857754868), (52, 12308021852), (56, 11428877434), (91, 7033155344), (104, 6154010926), (112, 5714438717), (182, 3516577672), (208, 3077005463), (364, 1758288836), (728, 879144418), (1456, 439572209), (7121, 89877424), (14242, 44938712), (28484, 22469356), (49847, 12839632), (56968, 11234678), (61729, 10368176), (92573, 6913648), (99694, 6419816), (113936, 5617339), (123458, 5184088), (185146, 3456824), (199388, 3209908), (246916, 2592044), (370292, 1728412), (398776, 1604954), (432103, 1481168), (493832, 1296022), (648011, 987664), (740584, 864206), (797552, 802477)]