159200360

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{1999}}^1$

素因数の和:2202

約数の個数: 64

約数和(自身を含む): 393120000

約数和(自身を除く): 233919640

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 181, 220, 362, 440, 724, 905, 1448, 1810, 1991, 1999, 3620, 3982, 3998, 7240, 7964, 7996, 9955, 9995, 15928, 15992, 19910, 19990, 21989, 39820, 39980, 43978, 79640, 79960, 87956, 109945, 175912, 219890, 361819, 439780, 723638, 879560, 1447276, 1809095, 2894552, 3618190, 3980009, 7236380, 7960018, 14472760, 15920036, 19900045, 31840072, 39800090, 79600180, 159200360]

約数ペア:

[(1, 159200360), (2, 79600180), (4, 39800090), (5, 31840072), (8, 19900045), (10, 15920036), (11, 14472760), (20, 7960018), (22, 7236380), (40, 3980009), (44, 3618190), (55, 2894552), (88, 1809095), (110, 1447276), (181, 879560), (220, 723638), (362, 439780), (440, 361819), (724, 219890), (905, 175912), (1448, 109945), (1810, 87956), (1991, 79960), (1999, 79640), (3620, 43978), (3982, 39980), (3998, 39820), (7240, 21989), (7964, 19990), (7996, 19910), (9955, 15992), (9995, 15928)]