7824020

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 17204880

約数和(自身を除く): 9380860

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 97, 109, 148, 185, 194, 218, 370, 388, 436, 485, 545, 740, 970, 1090, 1940, 2180, 3589, 4033, 7178, 8066, 10573, 14356, 16132, 17945, 20165, 21146, 35890, 40330, 42292, 52865, 71780, 80660, 105730, 211460, 391201, 782402, 1564804, 1956005, 3912010, 7824020]

約数ペア:

[(1, 7824020), (2, 3912010), (4, 1956005), (5, 1564804), (10, 782402), (20, 391201), (37, 211460), (74, 105730), (97, 80660), (109, 71780), (148, 52865), (185, 42292), (194, 40330), (218, 35890), (370, 21146), (388, 20165), (436, 17945), (485, 16132), (545, 14356), (740, 10573), (970, 8066), (1090, 7178), (1940, 4033), (2180, 3589)]