15952020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1999}}^1$

素因数の和:2037

約数の個数: 96

約数和(自身を含む): 53760000

約数和(自身を除く): 37807980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 190, 210, 228, 266, 285, 380, 399, 420, 532, 570, 665, 798, 1140, 1330, 1596, 1995, 1999, 2660, 3990, 3998, 5997, 7980, 7996, 9995, 11994, 13993, 19990, 23988, 27986, 29985, 37981, 39980, 41979, 55972, 59970, 69965, 75962, 83958, 113943, 119940, 139930, 151924, 167916, 189905, 209895, 227886, 265867, 279860, 379810, 419790, 455772, 531734, 569715, 759620, 797601, 839580, 1063468, 1139430, 1329335, 1595202, 2278860, 2658670, 3190404, 3988005, 5317340, 7976010, 15952020]

約数ペア:

[(1, 15952020), (2, 7976010), (3, 5317340), (4, 3988005), (5, 3190404), (6, 2658670), (7, 2278860), (10, 1595202), (12, 1329335), (14, 1139430), (15, 1063468), (19, 839580), (20, 797601), (21, 759620), (28, 569715), (30, 531734), (35, 455772), (38, 419790), (42, 379810), (57, 279860), (60, 265867), (70, 227886), (76, 209895), (84, 189905), (95, 167916), (105, 151924), (114, 139930), (133, 119940), (140, 113943), (190, 83958), (210, 75962), (228, 69965), (266, 59970), (285, 55972), (380, 41979), (399, 39980), (420, 37981), (532, 29985), (570, 27986), (665, 23988), (798, 19990), (1140, 13993), (1330, 11994), (1596, 9995), (1995, 7996), (1999, 7980), (2660, 5997), (3990, 3998)]