18476992

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:249

約数の個数: 56

約数和(自身を含む): 38689280

約数和(自身を除く): 20212288

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 67, 124, 134, 139, 248, 268, 278, 496, 536, 556, 992, 1072, 1112, 1984, 2077, 2144, 2224, 4154, 4288, 4309, 4448, 8308, 8618, 8896, 9313, 16616, 17236, 18626, 33232, 34472, 37252, 66464, 68944, 74504, 132928, 137888, 149008, 275776, 288703, 298016, 577406, 596032, 1154812, 2309624, 4619248, 9238496, 18476992]

約数ペア:

[(1, 18476992), (2, 9238496), (4, 4619248), (8, 2309624), (16, 1154812), (31, 596032), (32, 577406), (62, 298016), (64, 288703), (67, 275776), (124, 149008), (134, 137888), (139, 132928), (248, 74504), (268, 68944), (278, 66464), (496, 37252), (536, 34472), (556, 33232), (992, 18626), (1072, 17236), (1112, 16616), (1984, 9313), (2077, 8896), (2144, 8618), (2224, 8308), (4154, 4448), (4288, 4309)]