15550220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3583}}^1$

素因数の和:3630

約数の個数: 48

約数和(自身を含む): 38535168

約数和(自身を除く): 22984948

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 3583, 4340, 7166, 14332, 17915, 25081, 35830, 50162, 71660, 100324, 111073, 125405, 222146, 250810, 444292, 501620, 555365, 777511, 1110730, 1555022, 2221460, 3110044, 3887555, 7775110, 15550220]

約数ペア:

[(1, 15550220), (2, 7775110), (4, 3887555), (5, 3110044), (7, 2221460), (10, 1555022), (14, 1110730), (20, 777511), (28, 555365), (31, 501620), (35, 444292), (62, 250810), (70, 222146), (124, 125405), (140, 111073), (155, 100324), (217, 71660), (310, 50162), (434, 35830), (620, 25081), (868, 17915), (1085, 14332), (2170, 7166), (3583, 4340)]