7912920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:145

約数の個数: 128

約数和(自身を含む): 25712640

約数和(自身を除く): 17799720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 47, 60, 61, 69, 92, 94, 115, 120, 122, 138, 141, 183, 184, 188, 230, 235, 244, 276, 282, 305, 345, 366, 376, 460, 470, 488, 552, 564, 610, 690, 705, 732, 915, 920, 940, 1081, 1128, 1220, 1380, 1403, 1410, 1464, 1830, 1880, 2162, 2440, 2760, 2806, 2820, 2867, 3243, 3660, 4209, 4324, 5405, 5612, 5640, 5734, 6486, 7015, 7320, 8418, 8601, 8648, 10810, 11224, 11468, 12972, 14030, 14335, 16215, 16836, 17202, 21045, 21620, 22936, 25944, 28060, 28670, 32430, 33672, 34404, 42090, 43005, 43240, 56120, 57340, 64860, 65941, 68808, 84180, 86010, 114680, 129720, 131882, 168360, 172020, 197823, 263764, 329705, 344040, 395646, 527528, 659410, 791292, 989115, 1318820, 1582584, 1978230, 2637640, 3956460, 7912920]

約数ペア:

[(1, 7912920), (2, 3956460), (3, 2637640), (4, 1978230), (5, 1582584), (6, 1318820), (8, 989115), (10, 791292), (12, 659410), (15, 527528), (20, 395646), (23, 344040), (24, 329705), (30, 263764), (40, 197823), (46, 172020), (47, 168360), (60, 131882), (61, 129720), (69, 114680), (92, 86010), (94, 84180), (115, 68808), (120, 65941), (122, 64860), (138, 57340), (141, 56120), (183, 43240), (184, 43005), (188, 42090), (230, 34404), (235, 33672), (244, 32430), (276, 28670), (282, 28060), (305, 25944), (345, 22936), (366, 21620), (376, 21045), (460, 17202), (470, 16836), (488, 16215), (552, 14335), (564, 14030), (610, 12972), (690, 11468), (705, 11224), (732, 10810), (915, 8648), (920, 8601), (940, 8418), (1081, 7320), (1128, 7015), (1220, 6486), (1380, 5734), (1403, 5640), (1410, 5612), (1464, 5405), (1830, 4324), (1880, 4209), (2162, 3660), (2440, 3243), (2760, 2867), (2806, 2820)]