28431760

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{7253}}^1$

素因数の和:7280

約数の個数: 60

約数和(自身を含む): 76906908

約数和(自身を除く): 48475148

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, 7253, 14506, 29012, 36265, 50771, 58024, 72530, 101542, 116048, 145060, 203084, 253855, 290120, 355397, 406168, 507710, 580240, 710794, 812336, 1015420, 1421588, 1776985, 2030840, 2843176, 3553970, 4061680, 5686352, 7107940, 14215880, 28431760]

約数ペア:

[(1, 28431760), (2, 14215880), (4, 7107940), (5, 5686352), (7, 4061680), (8, 3553970), (10, 2843176), (14, 2030840), (16, 1776985), (20, 1421588), (28, 1015420), (35, 812336), (40, 710794), (49, 580240), (56, 507710), (70, 406168), (80, 355397), (98, 290120), (112, 253855), (140, 203084), (196, 145060), (245, 116048), (280, 101542), (392, 72530), (490, 58024), (560, 50771), (784, 36265), (980, 29012), (1960, 14506), (3920, 7253)]