64367800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1999}}^1$

素因数の和:2045

約数の個数: 96

約数和(自身を含む): 178560000

約数和(自身を除く): 114192200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 25, 28, 35, 40, 46, 50, 56, 70, 92, 100, 115, 140, 161, 175, 184, 200, 230, 280, 322, 350, 460, 575, 644, 700, 805, 920, 1150, 1288, 1400, 1610, 1999, 2300, 3220, 3998, 4025, 4600, 6440, 7996, 8050, 9995, 13993, 15992, 16100, 19990, 27986, 32200, 39980, 45977, 49975, 55972, 69965, 79960, 91954, 99950, 111944, 139930, 183908, 199900, 229885, 279860, 321839, 349825, 367816, 399800, 459770, 559720, 643678, 699650, 919540, 1149425, 1287356, 1399300, 1609195, 1839080, 2298850, 2574712, 2798600, 3218390, 4597700, 6436780, 8045975, 9195400, 12873560, 16091950, 32183900, 64367800]

約数ペア:

[(1, 64367800), (2, 32183900), (4, 16091950), (5, 12873560), (7, 9195400), (8, 8045975), (10, 6436780), (14, 4597700), (20, 3218390), (23, 2798600), (25, 2574712), (28, 2298850), (35, 1839080), (40, 1609195), (46, 1399300), (50, 1287356), (56, 1149425), (70, 919540), (92, 699650), (100, 643678), (115, 559720), (140, 459770), (161, 399800), (175, 367816), (184, 349825), (200, 321839), (230, 279860), (280, 229885), (322, 199900), (350, 183908), (460, 139930), (575, 111944), (644, 99950), (700, 91954), (805, 79960), (920, 69965), (1150, 55972), (1288, 49975), (1400, 45977), (1610, 39980), (1999, 32200), (2300, 27986), (3220, 19990), (3998, 16100), (4025, 15992), (4600, 13993), (6440, 9995), (7996, 8050)]