256989136

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{49727}}^1$

素因数の和:49771

約数の個数: 40

約数和(自身を含む): 554964480

約数和(自身を除く): 297975344

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 68, 76, 136, 152, 272, 304, 323, 646, 1292, 2584, 5168, 49727, 99454, 198908, 397816, 795632, 845359, 944813, 1690718, 1889626, 3381436, 3779252, 6762872, 7558504, 13525744, 15117008, 16061821, 32123642, 64247284, 128494568, 256989136]

約数ペア:

[(1, 256989136), (2, 128494568), (4, 64247284), (8, 32123642), (16, 16061821), (17, 15117008), (19, 13525744), (34, 7558504), (38, 6762872), (68, 3779252), (76, 3381436), (136, 1889626), (152, 1690718), (272, 944813), (304, 845359), (323, 795632), (646, 397816), (1292, 198908), (2584, 99454), (5168, 49727)]