88991840

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{11351}}^1$

素因数の和:11380

約数の個数: 72

約数和(自身を含む): 244590192

約数和(自身を除く): 155598352

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, 11351, 22702, 45404, 56755, 79457, 90808, 113510, 158914, 181616, 227020, 317828, 363232, 397285, 454040, 556199, 635656, 794570, 908080, 1112398, 1271312, 1589140, 1816160, 2224796, 2542624, 2780995, 3178280, 4449592, 5561990, 6356560, 8899184, 11123980, 12713120, 17798368, 22247960, 44495920, 88991840]

約数ペア:

[(1, 88991840), (2, 44495920), (4, 22247960), (5, 17798368), (7, 12713120), (8, 11123980), (10, 8899184), (14, 6356560), (16, 5561990), (20, 4449592), (28, 3178280), (32, 2780995), (35, 2542624), (40, 2224796), (49, 1816160), (56, 1589140), (70, 1271312), (80, 1112398), (98, 908080), (112, 794570), (140, 635656), (160, 556199), (196, 454040), (224, 397285), (245, 363232), (280, 317828), (392, 227020), (490, 181616), (560, 158914), (784, 113510), (980, 90808), (1120, 79457), (1568, 56755), (1960, 45404), (3920, 22702), (7840, 11351)]