261368192

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{331}}^1$

素因数の和:575

約数の個数: 64

約数和(自身を含む): 541824000

約数和(自身を除く): 280455808

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 199, 248, 331, 398, 496, 662, 796, 992, 1324, 1592, 1984, 2648, 3184, 3968, 5296, 6169, 6368, 10261, 10592, 12338, 12736, 20522, 21184, 24676, 25472, 41044, 42368, 49352, 65869, 82088, 98704, 131738, 164176, 197408, 263476, 328352, 394816, 526952, 656704, 789632, 1053904, 1313408, 2041939, 2107808, 4083878, 4215616, 8167756, 8431232, 16335512, 32671024, 65342048, 130684096, 261368192]

約数ペア:

[(1, 261368192), (2, 130684096), (4, 65342048), (8, 32671024), (16, 16335512), (31, 8431232), (32, 8167756), (62, 4215616), (64, 4083878), (124, 2107808), (128, 2041939), (199, 1313408), (248, 1053904), (331, 789632), (398, 656704), (496, 526952), (662, 394816), (796, 328352), (992, 263476), (1324, 197408), (1592, 164176), (1984, 131738), (2648, 98704), (3184, 82088), (3968, 65869), (5296, 49352), (6169, 42368), (6368, 41044), (10261, 25472), (10592, 24676), (12338, 21184), (12736, 20522)]