128774240

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4999}}^1$

素因数の和:5044

約数の個数: 96

約数和(自身を含む): 362880000

約数和(自身を除く): 234105760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 160, 161, 184, 224, 230, 280, 322, 368, 460, 560, 644, 736, 805, 920, 1120, 1288, 1610, 1840, 2576, 3220, 3680, 4999, 5152, 6440, 9998, 12880, 19996, 24995, 25760, 34993, 39992, 49990, 69986, 79984, 99980, 114977, 139972, 159968, 174965, 199960, 229954, 279944, 349930, 399920, 459908, 559888, 574885, 699860, 799840, 804839, 919816, 1119776, 1149770, 1399720, 1609678, 1839632, 2299540, 2799440, 3219356, 3679264, 4024195, 4599080, 5598880, 6438712, 8048390, 9198160, 12877424, 16096780, 18396320, 25754848, 32193560, 64387120, 128774240]

約数ペア:

[(1, 128774240), (2, 64387120), (4, 32193560), (5, 25754848), (7, 18396320), (8, 16096780), (10, 12877424), (14, 9198160), (16, 8048390), (20, 6438712), (23, 5598880), (28, 4599080), (32, 4024195), (35, 3679264), (40, 3219356), (46, 2799440), (56, 2299540), (70, 1839632), (80, 1609678), (92, 1399720), (112, 1149770), (115, 1119776), (140, 919816), (160, 804839), (161, 799840), (184, 699860), (224, 574885), (230, 559888), (280, 459908), (322, 399920), (368, 349930), (460, 279944), (560, 229954), (644, 199960), (736, 174965), (805, 159968), (920, 139972), (1120, 114977), (1288, 99980), (1610, 79984), (1840, 69986), (2576, 49990), (3220, 39992), (3680, 34993), (4999, 25760), (5152, 24995), (6440, 19996), (9998, 12880)]