16231880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1999}}^1$

素因数の和:2046

約数の個数: 64

約数和(自身を含む): 43200000

約数和(自身を除く): 26968120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 140, 145, 203, 232, 280, 290, 406, 580, 812, 1015, 1160, 1624, 1999, 2030, 3998, 4060, 7996, 8120, 9995, 13993, 15992, 19990, 27986, 39980, 55972, 57971, 69965, 79960, 111944, 115942, 139930, 231884, 279860, 289855, 405797, 463768, 559720, 579710, 811594, 1159420, 1623188, 2028985, 2318840, 3246376, 4057970, 8115940, 16231880]

約数ペア:

[(1, 16231880), (2, 8115940), (4, 4057970), (5, 3246376), (7, 2318840), (8, 2028985), (10, 1623188), (14, 1159420), (20, 811594), (28, 579710), (29, 559720), (35, 463768), (40, 405797), (56, 289855), (58, 279860), (70, 231884), (116, 139930), (140, 115942), (145, 111944), (203, 79960), (232, 69965), (280, 57971), (290, 55972), (406, 39980), (580, 27986), (812, 19990), (1015, 15992), (1160, 13993), (1624, 9995), (1999, 8120), (2030, 7996), (3998, 4060)]