128095920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1999}}^1$

素因数の和:2107

約数の個数: 120

約数和(自身を含む): 435240000

約数和(自身を除く): 307144080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 89, 90, 120, 144, 178, 180, 240, 267, 356, 360, 445, 534, 712, 720, 801, 890, 1068, 1335, 1424, 1602, 1780, 1999, 2136, 2670, 3204, 3560, 3998, 4005, 4272, 5340, 5997, 6408, 7120, 7996, 8010, 9995, 10680, 11994, 12816, 15992, 16020, 17991, 19990, 21360, 23988, 29985, 31984, 32040, 35982, 39980, 47976, 59970, 64080, 71964, 79960, 89955, 95952, 119940, 143928, 159920, 177911, 179910, 239880, 287856, 355822, 359820, 479760, 533733, 711644, 719640, 889555, 1067466, 1423288, 1439280, 1601199, 1779110, 2134932, 2668665, 2846576, 3202398, 3558220, 4269864, 5337330, 6404796, 7116440, 8005995, 8539728, 10674660, 12809592, 14232880, 16011990, 21349320, 25619184, 32023980, 42698640, 64047960, 128095920]

約数ペア:

[(1, 128095920), (2, 64047960), (3, 42698640), (4, 32023980), (5, 25619184), (6, 21349320), (8, 16011990), (9, 14232880), (10, 12809592), (12, 10674660), (15, 8539728), (16, 8005995), (18, 7116440), (20, 6404796), (24, 5337330), (30, 4269864), (36, 3558220), (40, 3202398), (45, 2846576), (48, 2668665), (60, 2134932), (72, 1779110), (80, 1601199), (89, 1439280), (90, 1423288), (120, 1067466), (144, 889555), (178, 719640), (180, 711644), (240, 533733), (267, 479760), (356, 359820), (360, 355822), (445, 287856), (534, 239880), (712, 179910), (720, 177911), (801, 159920), (890, 143928), (1068, 119940), (1335, 95952), (1424, 89955), (1602, 79960), (1780, 71964), (1999, 64080), (2136, 59970), (2670, 47976), (3204, 39980), (3560, 35982), (3998, 32040), (4005, 31984), (4272, 29985), (5340, 23988), (5997, 21360), (6408, 19990), (7120, 17991), (7996, 16020), (8010, 15992), (9995, 12816), (10680, 11994)]