17978520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1259}}^1$

素因数の和:1297

約数の個数: 128

約数和(自身を含む): 65318400

約数和(自身を除く): 47339880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 51, 56, 60, 68, 70, 84, 85, 102, 105, 119, 120, 136, 140, 168, 170, 204, 210, 238, 255, 280, 340, 357, 408, 420, 476, 510, 595, 680, 714, 840, 952, 1020, 1190, 1259, 1428, 1785, 2040, 2380, 2518, 2856, 3570, 3777, 4760, 5036, 6295, 7140, 7554, 8813, 10072, 12590, 14280, 15108, 17626, 18885, 21403, 25180, 26439, 30216, 35252, 37770, 42806, 44065, 50360, 52878, 64209, 70504, 75540, 85612, 88130, 105756, 107015, 128418, 132195, 149821, 151080, 171224, 176260, 211512, 214030, 256836, 264390, 299642, 321045, 352520, 428060, 449463, 513672, 528780, 599284, 642090, 749105, 856120, 898926, 1057560, 1198568, 1284180, 1498210, 1797852, 2247315, 2568360, 2996420, 3595704, 4494630, 5992840, 8989260, 17978520]

約数ペア:

[(1, 17978520), (2, 8989260), (3, 5992840), (4, 4494630), (5, 3595704), (6, 2996420), (7, 2568360), (8, 2247315), (10, 1797852), (12, 1498210), (14, 1284180), (15, 1198568), (17, 1057560), (20, 898926), (21, 856120), (24, 749105), (28, 642090), (30, 599284), (34, 528780), (35, 513672), (40, 449463), (42, 428060), (51, 352520), (56, 321045), (60, 299642), (68, 264390), (70, 256836), (84, 214030), (85, 211512), (102, 176260), (105, 171224), (119, 151080), (120, 149821), (136, 132195), (140, 128418), (168, 107015), (170, 105756), (204, 88130), (210, 85612), (238, 75540), (255, 70504), (280, 64209), (340, 52878), (357, 50360), (408, 44065), (420, 42806), (476, 37770), (510, 35252), (595, 30216), (680, 26439), (714, 25180), (840, 21403), (952, 18885), (1020, 17626), (1190, 15108), (1259, 14280), (1428, 12590), (1785, 10072), (2040, 8813), (2380, 7554), (2518, 7140), (2856, 6295), (3570, 5036), (3777, 4760)]