4557720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1999}}^1$

素因数の和:2032

約数の個数: 64

約数和(自身を含む): 14400000

約数和(自身を除く): 9842280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1140, 1999, 2280, 3998, 5997, 7996, 9995, 11994, 15992, 19990, 23988, 29985, 37981, 39980, 47976, 59970, 75962, 79960, 113943, 119940, 151924, 189905, 227886, 239880, 303848, 379810, 455772, 569715, 759620, 911544, 1139430, 1519240, 2278860, 4557720]

約数ペア:

[(1, 4557720), (2, 2278860), (3, 1519240), (4, 1139430), (5, 911544), (6, 759620), (8, 569715), (10, 455772), (12, 379810), (15, 303848), (19, 239880), (20, 227886), (24, 189905), (30, 151924), (38, 119940), (40, 113943), (57, 79960), (60, 75962), (76, 59970), (95, 47976), (114, 39980), (120, 37981), (152, 29985), (190, 23988), (228, 19990), (285, 15992), (380, 11994), (456, 9995), (570, 7996), (760, 5997), (1140, 3998), (1999, 2280)]