28074860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{3449}}^1$

素因数の和:3506

約数の個数: 48

約数和(自身を含む): 66074400

約数和(自身を除く): 37999540

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 370, 407, 740, 814, 1628, 2035, 3449, 4070, 6898, 8140, 13796, 17245, 34490, 37939, 68980, 75878, 127613, 151756, 189695, 255226, 379390, 510452, 638065, 758780, 1276130, 1403743, 2552260, 2807486, 5614972, 7018715, 14037430, 28074860]

約数ペア:

[(1, 28074860), (2, 14037430), (4, 7018715), (5, 5614972), (10, 2807486), (11, 2552260), (20, 1403743), (22, 1276130), (37, 758780), (44, 638065), (55, 510452), (74, 379390), (110, 255226), (148, 189695), (185, 151756), (220, 127613), (370, 75878), (407, 68980), (740, 37939), (814, 34490), (1628, 17245), (2035, 13796), (3449, 8140), (4070, 6898)]