30871040

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{389}}^1$

素因数の和:443

約数の個数: 80

約数和(自身を含む): 76602240

約数和(自身を除く): 45731200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 389, 496, 512, 620, 640, 778, 992, 1240, 1280, 1556, 1945, 1984, 2480, 2560, 3112, 3890, 3968, 4960, 6224, 7780, 7936, 9920, 12059, 12448, 15560, 15872, 19840, 24118, 24896, 31120, 39680, 48236, 49792, 60295, 62240, 79360, 96472, 99584, 120590, 124480, 192944, 199168, 241180, 248960, 385888, 482360, 497920, 771776, 964720, 995840, 1543552, 1929440, 3087104, 3858880, 6174208, 7717760, 15435520, 30871040]

約数ペア:

[(1, 30871040), (2, 15435520), (4, 7717760), (5, 6174208), (8, 3858880), (10, 3087104), (16, 1929440), (20, 1543552), (31, 995840), (32, 964720), (40, 771776), (62, 497920), (64, 482360), (80, 385888), (124, 248960), (128, 241180), (155, 199168), (160, 192944), (248, 124480), (256, 120590), (310, 99584), (320, 96472), (389, 79360), (496, 62240), (512, 60295), (620, 49792), (640, 48236), (778, 39680), (992, 31120), (1240, 24896), (1280, 24118), (1556, 19840), (1945, 15872), (1984, 15560), (2480, 12448), (2560, 12059), (3112, 9920), (3890, 7936), (3968, 7780), (4960, 6224)]