1997960040

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{49999}}^1$

素因数の和:50056

約数の個数: 128

約数和(自身を含む): 6840000000

約数和(自身を除く): 4842039960

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, 2220, 2664, 3330, 3996, 4440, 4995, 6660, 7992, 9990, 13320, 19980, 39960, 49999, 99998, 149997, 199996, 249995, 299994, 399992, 449991, 499990, 599988, 749985, 899982, 999980, 1199976, 1349973, 1499970, 1799964, 1849963, 1999960, 2249955, 2699946, 2999940, 3599928, 3699926, 4499910, 5399892, 5549889, 5999880, 6749865, 7399852, 8999820, 9249815, 10799784, 11099778, 13499730, 14799704, 16649667, 17999640, 18499630, 22199556, 26999460, 27749445, 33299334, 36999260, 44399112, 49949001, 53998920, 55498890, 66598668, 73998520, 83248335, 99898002, 110997780, 133197336, 166496670, 199796004, 221995560, 249745005, 332993340, 399592008, 499490010, 665986680, 998980020, 1997960040]

約数ペア:

[(1, 1997960040), (2, 998980020), (3, 665986680), (4, 499490010), (5, 399592008), (6, 332993340), (8, 249745005), (9, 221995560), (10, 199796004), (12, 166496670), (15, 133197336), (18, 110997780), (20, 99898002), (24, 83248335), (27, 73998520), (30, 66598668), (36, 55498890), (37, 53998920), (40, 49949001), (45, 44399112), (54, 36999260), (60, 33299334), (72, 27749445), (74, 26999460), (90, 22199556), (108, 18499630), (111, 17999640), (120, 16649667), (135, 14799704), (148, 13499730), (180, 11099778), (185, 10799784), (216, 9249815), (222, 8999820), (270, 7399852), (296, 6749865), (333, 5999880), (360, 5549889), (370, 5399892), (444, 4499910), (540, 3699926), (555, 3599928), (666, 2999940), (740, 2699946), (888, 2249955), (999, 1999960), (1080, 1849963), (1110, 1799964), (1332, 1499970), (1480, 1349973), (1665, 1199976), (1998, 999980), (2220, 899982), (2664, 749985), (3330, 599988), (3996, 499990), (4440, 449991), (4995, 399992), (6660, 299994), (7992, 249995), (9990, 199996), (13320, 149997), (19980, 99998), (39960, 49999)]