68495120

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1$

素因数の和:504

約数の個数: 80

約数和(自身を含む): 167132160

約数和(自身を除く): 98637040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 71, 80, 124, 142, 155, 248, 284, 310, 355, 389, 496, 568, 620, 710, 778, 1136, 1240, 1420, 1556, 1945, 2201, 2480, 2840, 3112, 3890, 4402, 5680, 6224, 7780, 8804, 11005, 12059, 15560, 17608, 22010, 24118, 27619, 31120, 35216, 44020, 48236, 55238, 60295, 88040, 96472, 110476, 120590, 138095, 176080, 192944, 220952, 241180, 276190, 441904, 482360, 552380, 856189, 964720, 1104760, 1712378, 2209520, 3424756, 4280945, 6849512, 8561890, 13699024, 17123780, 34247560, 68495120]

約数ペア:

[(1, 68495120), (2, 34247560), (4, 17123780), (5, 13699024), (8, 8561890), (10, 6849512), (16, 4280945), (20, 3424756), (31, 2209520), (40, 1712378), (62, 1104760), (71, 964720), (80, 856189), (124, 552380), (142, 482360), (155, 441904), (248, 276190), (284, 241180), (310, 220952), (355, 192944), (389, 176080), (496, 138095), (568, 120590), (620, 110476), (710, 96472), (778, 88040), (1136, 60295), (1240, 55238), (1420, 48236), (1556, 44020), (1945, 35216), (2201, 31120), (2480, 27619), (2840, 24118), (3112, 22010), (3890, 17608), (4402, 15560), (5680, 12059), (6224, 11005), (7780, 8804)]