79880040

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1999}}^1$

素因数の和:2056

約数の個数: 128

約数和(自身を含む): 273600000

約数和(自身を除く): 193719960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 37, 40, 45, 54, 60, 72, 74, 90, 108, 111, 120, 135, 148, 180, 185, 216, 222, 270, 296, 333, 360, 370, 444, 540, 555, 666, 740, 888, 999, 1080, 1110, 1332, 1480, 1665, 1998, 1999, 2220, 2664, 3330, 3996, 3998, 4440, 4995, 5997, 6660, 7992, 7996, 9990, 9995, 11994, 13320, 15992, 17991, 19980, 19990, 23988, 29985, 35982, 39960, 39980, 47976, 53973, 59970, 71964, 73963, 79960, 89955, 107946, 119940, 143928, 147926, 179910, 215892, 221889, 239880, 269865, 295852, 359820, 369815, 431784, 443778, 539730, 591704, 665667, 719640, 739630, 887556, 1079460, 1109445, 1331334, 1479260, 1775112, 1997001, 2158920, 2218890, 2662668, 2958520, 3328335, 3994002, 4437780, 5325336, 6656670, 7988004, 8875560, 9985005, 13313340, 15976008, 19970010, 26626680, 39940020, 79880040]

約数ペア:

[(1, 79880040), (2, 39940020), (3, 26626680), (4, 19970010), (5, 15976008), (6, 13313340), (8, 9985005), (9, 8875560), (10, 7988004), (12, 6656670), (15, 5325336), (18, 4437780), (20, 3994002), (24, 3328335), (27, 2958520), (30, 2662668), (36, 2218890), (37, 2158920), (40, 1997001), (45, 1775112), (54, 1479260), (60, 1331334), (72, 1109445), (74, 1079460), (90, 887556), (108, 739630), (111, 719640), (120, 665667), (135, 591704), (148, 539730), (180, 443778), (185, 431784), (216, 369815), (222, 359820), (270, 295852), (296, 269865), (333, 239880), (360, 221889), (370, 215892), (444, 179910), (540, 147926), (555, 143928), (666, 119940), (740, 107946), (888, 89955), (999, 79960), (1080, 73963), (1110, 71964), (1332, 59970), (1480, 53973), (1665, 47976), (1998, 39980), (1999, 39960), (2220, 35982), (2664, 29985), (3330, 23988), (3996, 19990), (3998, 19980), (4440, 17991), (4995, 15992), (5997, 13320), (6660, 11994), (7992, 9995), (7996, 9990)]