8181520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3299}}^1$

素因数の和:3343

約数の個数: 40

約数和(自身を含む): 19641600

約数和(自身を除く): 11460080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 3299, 6598, 13196, 16495, 26392, 32990, 52784, 65980, 102269, 131960, 204538, 263920, 409076, 511345, 818152, 1022690, 1636304, 2045380, 4090760, 8181520]

約数ペア:

[(1, 8181520), (2, 4090760), (4, 2045380), (5, 1636304), (8, 1022690), (10, 818152), (16, 511345), (20, 409076), (31, 263920), (40, 204538), (62, 131960), (80, 102269), (124, 65980), (155, 52784), (248, 32990), (310, 26392), (496, 16495), (620, 13196), (1240, 6598), (2480, 3299)]