31001984

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{601}}^1$

素因数の和:659

約数の個数: 64

約数和(自身を含む): 68772480

約数和(自身を除く): 37770496

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 104, 124, 128, 208, 248, 403, 416, 496, 601, 806, 832, 992, 1202, 1612, 1664, 1984, 2404, 3224, 3968, 4808, 6448, 7813, 9616, 12896, 15626, 18631, 19232, 25792, 31252, 37262, 38464, 51584, 62504, 74524, 76928, 125008, 149048, 242203, 250016, 298096, 484406, 500032, 596192, 968812, 1000064, 1192384, 1937624, 2384768, 3875248, 7750496, 15500992, 31001984]

約数ペア:

[(1, 31001984), (2, 15500992), (4, 7750496), (8, 3875248), (13, 2384768), (16, 1937624), (26, 1192384), (31, 1000064), (32, 968812), (52, 596192), (62, 500032), (64, 484406), (104, 298096), (124, 250016), (128, 242203), (208, 149048), (248, 125008), (403, 76928), (416, 74524), (496, 62504), (601, 51584), (806, 38464), (832, 37262), (992, 31252), (1202, 25792), (1612, 19232), (1664, 18631), (1984, 15626), (2404, 12896), (3224, 9616), (3968, 7813), (4808, 6448)]