257890306

素因数分解:

$2^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1021}}^1$

素因数の和:1099

約数の個数: 48

約数和(自身を含む): 451805760

約数和(自身を除く): 193915454

約数列:

[1, 2, 17, 19, 23, 34, 38, 46, 289, 323, 391, 437, 578, 646, 782, 874, 1021, 2042, 5491, 6647, 7429, 10982, 13294, 14858, 17357, 19399, 23483, 34714, 38798, 46966, 126293, 252586, 295069, 329783, 399211, 446177, 590138, 659566, 798422, 892354, 5606311, 6786587, 7585009, 11212622, 13573174, 15170018, 128945153, 257890306]

約数ペア:

[(1, 257890306), (2, 128945153), (17, 15170018), (19, 13573174), (23, 11212622), (34, 7585009), (38, 6786587), (46, 5606311), (289, 892354), (323, 798422), (391, 659566), (437, 590138), (578, 446177), (646, 399211), (782, 329783), (874, 295069), (1021, 252586), (2042, 126293), (5491, 46966), (6647, 38798), (7429, 34714), (10982, 23483), (13294, 19399), (14858, 17357)]