78454880

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{10007}}^1$

素因数の和:10036

約数の個数: 72

約数和(自身を含む): 215632368

約数和(自身を除く): 137177488

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 10007, 20014, 40028, 50035, 70049, 80056, 100070, 140098, 160112, 200140, 280196, 320224, 350245, 400280, 490343, 560392, 700490, 800560, 980686, 1120784, 1400980, 1601120, 1961372, 2241568, 2451715, 2801960, 3922744, 4903430, 5603920, 7845488, 9806860, 11207840, 15690976, 19613720, 39227440, 78454880]

約数ペア:

[(1, 78454880), (2, 39227440), (4, 19613720), (5, 15690976), (7, 11207840), (8, 9806860), (10, 7845488), (14, 5603920), (16, 4903430), (20, 3922744), (28, 2801960), (32, 2451715), (35, 2241568), (40, 1961372), (49, 1601120), (56, 1400980), (70, 1120784), (80, 980686), (98, 800560), (112, 700490), (140, 560392), (160, 490343), (196, 400280), (224, 350245), (245, 320224), (280, 280196), (392, 200140), (490, 160112), (560, 140098), (784, 100070), (980, 80056), (1120, 70049), (1568, 50035), (1960, 40028), (3920, 20014), (7840, 10007)]