28054908

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{683}}^1$

素因数の和:863

約数の個数: 72

約数和(自身を含む): 81664128

約数和(自身を除く): 53609220

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 163, 252, 326, 489, 652, 683, 978, 1141, 1366, 1467, 1956, 2049, 2282, 2732, 2934, 3423, 4098, 4564, 4781, 5868, 6147, 6846, 8196, 9562, 10269, 12294, 13692, 14343, 19124, 20538, 24588, 28686, 41076, 43029, 57372, 86058, 111329, 172116, 222658, 333987, 445316, 667974, 779303, 1001961, 1335948, 1558606, 2003922, 2337909, 3117212, 4007844, 4675818, 7013727, 9351636, 14027454, 28054908]

約数ペア:

[(1, 28054908), (2, 14027454), (3, 9351636), (4, 7013727), (6, 4675818), (7, 4007844), (9, 3117212), (12, 2337909), (14, 2003922), (18, 1558606), (21, 1335948), (28, 1001961), (36, 779303), (42, 667974), (63, 445316), (84, 333987), (126, 222658), (163, 172116), (252, 111329), (326, 86058), (489, 57372), (652, 43029), (683, 41076), (978, 28686), (1141, 24588), (1366, 20538), (1467, 19124), (1956, 14343), (2049, 13692), (2282, 12294), (2732, 10269), (2934, 9562), (3423, 8196), (4098, 6846), (4564, 6147), (4781, 5868)]