28332760

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{313}}^1$

素因数の和:428

約数の個数: 64

約数和(自身を含む): 66919680

約数和(自身を除く): 38586920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 73, 124, 146, 155, 248, 292, 310, 313, 365, 584, 620, 626, 730, 1240, 1252, 1460, 1565, 2263, 2504, 2920, 3130, 4526, 6260, 9052, 9703, 11315, 12520, 18104, 19406, 22630, 22849, 38812, 45260, 45698, 48515, 77624, 90520, 91396, 97030, 114245, 182792, 194060, 228490, 388120, 456980, 708319, 913960, 1416638, 2833276, 3541595, 5666552, 7083190, 14166380, 28332760]

約数ペア:

[(1, 28332760), (2, 14166380), (4, 7083190), (5, 5666552), (8, 3541595), (10, 2833276), (20, 1416638), (31, 913960), (40, 708319), (62, 456980), (73, 388120), (124, 228490), (146, 194060), (155, 182792), (248, 114245), (292, 97030), (310, 91396), (313, 90520), (365, 77624), (584, 48515), (620, 45698), (626, 45260), (730, 38812), (1240, 22849), (1252, 22630), (1460, 19406), (1565, 18104), (2263, 12520), (2504, 11315), (2920, 9703), (3130, 9052), (4526, 6260)]