68415340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{21247}}^1$

素因数の和:21286

約数の個数: 48

約数和(自身を含む): 171343872

約数和(自身を除く): 102928532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 21247, 42494, 84988, 106235, 148729, 212470, 297458, 424940, 488681, 594916, 743645, 977362, 1487290, 1954724, 2443405, 2974580, 3420767, 4886810, 6841534, 9773620, 13683068, 17103835, 34207670, 68415340]

約数ペア:

[(1, 68415340), (2, 34207670), (4, 17103835), (5, 13683068), (7, 9773620), (10, 6841534), (14, 4886810), (20, 3420767), (23, 2974580), (28, 2443405), (35, 1954724), (46, 1487290), (70, 977362), (92, 743645), (115, 594916), (140, 488681), (161, 424940), (230, 297458), (322, 212470), (460, 148729), (644, 106235), (805, 84988), (1610, 42494), (3220, 21247)]