81191970

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{100237}}^1$

素因数の和:100256

約数の個数: 40

約数和(自身を含む): 218318364

約数和(自身を除く): 137126394

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 100237, 200474, 300711, 501185, 601422, 902133, 1002370, 1503555, 1804266, 2706399, 3007110, 4510665, 5412798, 8119197, 9021330, 13531995, 16238394, 27063990, 40595985, 81191970]

約数ペア:

[(1, 81191970), (2, 40595985), (3, 27063990), (5, 16238394), (6, 13531995), (9, 9021330), (10, 8119197), (15, 5412798), (18, 4510665), (27, 3007110), (30, 2706399), (45, 1804266), (54, 1503555), (81, 1002370), (90, 902133), (135, 601422), (162, 501185), (270, 300711), (405, 200474), (810, 100237)]