20796140

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{853}}^1$

素因数の和:938

約数の個数: 48

約数和(自身を含む): 46484928

約数和(自身を除く): 25688788

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 53, 92, 106, 115, 212, 230, 265, 460, 530, 853, 1060, 1219, 1706, 2438, 3412, 4265, 4876, 6095, 8530, 12190, 17060, 19619, 24380, 39238, 45209, 78476, 90418, 98095, 180836, 196190, 226045, 392380, 452090, 904180, 1039807, 2079614, 4159228, 5199035, 10398070, 20796140]

約数ペア:

[(1, 20796140), (2, 10398070), (4, 5199035), (5, 4159228), (10, 2079614), (20, 1039807), (23, 904180), (46, 452090), (53, 392380), (92, 226045), (106, 196190), (115, 180836), (212, 98095), (230, 90418), (265, 78476), (460, 45209), (530, 39238), (853, 24380), (1060, 19619), (1219, 17060), (1706, 12190), (2438, 8530), (3412, 6095), (4265, 4876)]