65340560

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{26347}}^1$

素因数の和:26391

約数の個数: 40

約数和(自身を含む): 156823296

約数和(自身を除く): 91482736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 26347, 52694, 105388, 131735, 210776, 263470, 421552, 526940, 816757, 1053880, 1633514, 2107760, 3267028, 4083785, 6534056, 8167570, 13068112, 16335140, 32670280, 65340560]

約数ペア:

[(1, 65340560), (2, 32670280), (4, 16335140), (5, 13068112), (8, 8167570), (10, 6534056), (16, 4083785), (20, 3267028), (31, 2107760), (40, 1633514), (62, 1053880), (80, 816757), (124, 526940), (155, 421552), (248, 263470), (310, 210776), (496, 131735), (620, 105388), (1240, 52694), (2480, 26347)]