123895520

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{15803}}^1$

素因数の和:15832

約数の個数: 72

約数和(自身を含む): 340512984

約数和(自身を除く): 216617464

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, 15803, 31606, 63212, 79015, 110621, 126424, 158030, 221242, 252848, 316060, 442484, 505696, 553105, 632120, 774347, 884968, 1106210, 1264240, 1548694, 1769936, 2212420, 2528480, 3097388, 3539872, 3871735, 4424840, 6194776, 7743470, 8849680, 12389552, 15486940, 17699360, 24779104, 30973880, 61947760, 123895520]

約数ペア:

[(1, 123895520), (2, 61947760), (4, 30973880), (5, 24779104), (7, 17699360), (8, 15486940), (10, 12389552), (14, 8849680), (16, 7743470), (20, 6194776), (28, 4424840), (32, 3871735), (35, 3539872), (40, 3097388), (49, 2528480), (56, 2212420), (70, 1769936), (80, 1548694), (98, 1264240), (112, 1106210), (140, 884968), (160, 774347), (196, 632120), (224, 553105), (245, 505696), (280, 442484), (392, 316060), (490, 252848), (560, 221242), (784, 158030), (980, 126424), (1120, 110621), (1568, 79015), (1960, 63212), (3920, 31606), (7840, 15803)]