68403980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{3559}}^1$

素因数の和:3630

約数の個数: 36

約数和(自身を含む): 148473360

約数和(自身を除く): 80069380

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 961, 1922, 3559, 3844, 4805, 7118, 9610, 14236, 17795, 19220, 35590, 71180, 110329, 220658, 441316, 551645, 1103290, 2206580, 3420199, 6840398, 13680796, 17100995, 34201990, 68403980]

約数ペア:

[(1, 68403980), (2, 34201990), (4, 17100995), (5, 13680796), (10, 6840398), (20, 3420199), (31, 2206580), (62, 1103290), (124, 551645), (155, 441316), (310, 220658), (620, 110329), (961, 71180), (1922, 35590), (3559, 19220), (3844, 17795), (4805, 14236), (7118, 9610)]