81700020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{453889}}^1$

素因数の和:453904

約数の個数: 36

約数和(自身を含む): 247823940

約数和(自身を除く): 166123920

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 453889, 907778, 1361667, 1815556, 2269445, 2723334, 4085001, 4538890, 5446668, 6808335, 8170002, 9077780, 13616670, 16340004, 20425005, 27233340, 40850010, 81700020]

約数ペア:

[(1, 81700020), (2, 40850010), (3, 27233340), (4, 20425005), (5, 16340004), (6, 13616670), (9, 9077780), (10, 8170002), (12, 6808335), (15, 5446668), (18, 4538890), (20, 4085001), (30, 2723334), (36, 2269445), (45, 1815556), (60, 1361667), (90, 907778), (180, 453889)]