388491005

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^2\times {\mathrm{157}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 573805440

約数和(自身を除く): 185314435

約数列:

[1, 5, 7, 19, 35, 61, 95, 133, 157, 305, 427, 665, 785, 1099, 1159, 2135, 2983, 3721, 5495, 5795, 8113, 9577, 14915, 18605, 20881, 26047, 40565, 47885, 67039, 70699, 104405, 130235, 181963, 335195, 353495, 494893, 584197, 909815, 1273741, 2474465, 2920985, 4089379, 6368705, 11099743, 20446895, 55498715, 77698201, 388491005]

約数ペア:

[(1, 388491005), (5, 77698201), (7, 55498715), (19, 20446895), (35, 11099743), (61, 6368705), (95, 4089379), (133, 2920985), (157, 2474465), (305, 1273741), (427, 909815), (665, 584197), (785, 494893), (1099, 353495), (1159, 335195), (2135, 181963), (2983, 130235), (3721, 104405), (5495, 70699), (5795, 67039), (8113, 47885), (9577, 40565), (14915, 26047), (18605, 20881)]