15636880

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{3989}}^1$

素因数の和:4016

約数の個数: 60

約数和(自身を含む): 42301980

約数和(自身を除く): 26665100

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 3989, 7978, 15956, 19945, 27923, 31912, 39890, 55846, 63824, 79780, 111692, 139615, 159560, 195461, 223384, 279230, 319120, 390922, 446768, 558460, 781844, 977305, 1116920, 1563688, 1954610, 2233840, 3127376, 3909220, 7818440, 15636880]

約数ペア:

[(1, 15636880), (2, 7818440), (4, 3909220), (5, 3127376), (7, 2233840), (8, 1954610), (10, 1563688), (14, 1116920), (16, 977305), (20, 781844), (28, 558460), (35, 446768), (40, 390922), (49, 319120), (56, 279230), (70, 223384), (80, 195461), (98, 159560), (112, 139615), (140, 111692), (196, 79780), (245, 63824), (280, 55846), (392, 39890), (490, 31912), (560, 27923), (784, 19945), (980, 15956), (1960, 7978), (3920, 3989)]