30981440

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{13831}}^1$

素因数の和:13855

約数の個数: 56

約数和(自身を含む): 84319872

約数和(自身を除く): 53338432

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 1120, 2240, 13831, 27662, 55324, 69155, 96817, 110648, 138310, 193634, 221296, 276620, 387268, 442592, 484085, 553240, 774536, 885184, 968170, 1106480, 1549072, 1936340, 2212960, 3098144, 3872680, 4425920, 6196288, 7745360, 15490720, 30981440]

約数ペア:

[(1, 30981440), (2, 15490720), (4, 7745360), (5, 6196288), (7, 4425920), (8, 3872680), (10, 3098144), (14, 2212960), (16, 1936340), (20, 1549072), (28, 1106480), (32, 968170), (35, 885184), (40, 774536), (56, 553240), (64, 484085), (70, 442592), (80, 387268), (112, 276620), (140, 221296), (160, 193634), (224, 138310), (280, 110648), (320, 96817), (448, 69155), (560, 55324), (1120, 27662), (2240, 13831)]