398731008

素因数分解:

$2^8\times 3^1\times {\mathrm{13}}^1\times {\mathrm{39937}}^1$

素因数の和:39969

約数の個数: 72

約数和(自身を含む): 1142865808

約数和(自身を除く): 744134800

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 64, 78, 96, 104, 128, 156, 192, 208, 256, 312, 384, 416, 624, 768, 832, 1248, 1664, 2496, 3328, 4992, 9984, 39937, 79874, 119811, 159748, 239622, 319496, 479244, 519181, 638992, 958488, 1038362, 1277984, 1557543, 1916976, 2076724, 2555968, 3115086, 3833952, 4153448, 5111936, 6230172, 7667904, 8306896, 10223872, 12460344, 15335808, 16613792, 24920688, 30671616, 33227584, 49841376, 66455168, 99682752, 132910336, 199365504, 398731008]

約数ペア:

[(1, 398731008), (2, 199365504), (3, 132910336), (4, 99682752), (6, 66455168), (8, 49841376), (12, 33227584), (13, 30671616), (16, 24920688), (24, 16613792), (26, 15335808), (32, 12460344), (39, 10223872), (48, 8306896), (52, 7667904), (64, 6230172), (78, 5111936), (96, 4153448), (104, 3833952), (128, 3115086), (156, 2555968), (192, 2076724), (208, 1916976), (256, 1557543), (312, 1277984), (384, 1038362), (416, 958488), (624, 638992), (768, 519181), (832, 479244), (1248, 319496), (1664, 239622), (2496, 159748), (3328, 119811), (4992, 79874), (9984, 39937)]