218425384

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1\times {\mathrm{233}}^1$

素因数の和:430

約数の個数: 64

約数和(自身を含む): 446556240

約数和(自身を除く): 228130856

約数列:

[1, 2, 4, 8, 17, 34, 61, 68, 113, 122, 136, 226, 233, 244, 452, 466, 488, 904, 932, 1037, 1864, 1921, 2074, 3842, 3961, 4148, 6893, 7684, 7922, 8296, 13786, 14213, 15368, 15844, 26329, 27572, 28426, 31688, 52658, 55144, 56852, 105316, 113704, 117181, 210632, 234362, 241621, 447593, 468724, 483242, 895186, 937448, 966484, 1606069, 1790372, 1932968, 3212138, 3580744, 6424276, 12848552, 27303173, 54606346, 109212692, 218425384]

約数ペア:

[(1, 218425384), (2, 109212692), (4, 54606346), (8, 27303173), (17, 12848552), (34, 6424276), (61, 3580744), (68, 3212138), (113, 1932968), (122, 1790372), (136, 1606069), (226, 966484), (233, 937448), (244, 895186), (452, 483242), (466, 468724), (488, 447593), (904, 241621), (932, 234362), (1037, 210632), (1864, 117181), (1921, 113704), (2074, 105316), (3842, 56852), (3961, 55144), (4148, 52658), (6893, 31688), (7684, 28426), (7922, 27572), (8296, 26329), (13786, 15844), (14213, 15368)]