31273760

素因数分解:

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

素因数の和:4018

約数の個数: 72

約数和(自身を含む): 85968540

約数和(自身を除く): 54694780

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 3989, 7840, 7978, 15956, 19945, 27923, 31912, 39890, 55846, 63824, 79780, 111692, 127648, 139615, 159560, 195461, 223384, 279230, 319120, 390922, 446768, 558460, 638240, 781844, 893536, 977305, 1116920, 1563688, 1954610, 2233840, 3127376, 3909220, 4467680, 6254752, 7818440, 15636880, 31273760]

約数ペア:

[(1, 31273760), (2, 15636880), (4, 7818440), (5, 6254752), (7, 4467680), (8, 3909220), (10, 3127376), (14, 2233840), (16, 1954610), (20, 1563688), (28, 1116920), (32, 977305), (35, 893536), (40, 781844), (49, 638240), (56, 558460), (70, 446768), (80, 390922), (98, 319120), (112, 279230), (140, 223384), (160, 195461), (196, 159560), (224, 139615), (245, 127648), (280, 111692), (392, 79780), (490, 63824), (560, 55846), (784, 39890), (980, 31912), (1120, 27923), (1568, 19945), (1960, 15956), (3920, 7978), (3989, 7840)]