80420780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{2113}}^1$

素因数の和:2306

約数の個数: 48

約数和(自身を含む): 185389344

約数和(自身を除く): 104968564

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 173, 220, 346, 692, 865, 1730, 1903, 2113, 3460, 3806, 4226, 7612, 8452, 9515, 10565, 19030, 21130, 23243, 38060, 42260, 46486, 92972, 116215, 232430, 365549, 464860, 731098, 1462196, 1827745, 3655490, 4021039, 7310980, 8042078, 16084156, 20105195, 40210390, 80420780]

約数ペア:

[(1, 80420780), (2, 40210390), (4, 20105195), (5, 16084156), (10, 8042078), (11, 7310980), (20, 4021039), (22, 3655490), (44, 1827745), (55, 1462196), (110, 731098), (173, 464860), (220, 365549), (346, 232430), (692, 116215), (865, 92972), (1730, 46486), (1903, 42260), (2113, 38060), (3460, 23243), (3806, 21130), (4226, 19030), (7612, 10565), (8452, 9515)]