18721300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{14401}}^1$

素因数の和:14428

約数の個数: 36

約数和(自身を含む): 43753276

約数和(自身を除く): 25031976

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 14401, 28802, 57604, 72005, 144010, 187213, 288020, 360025, 374426, 720050, 748852, 936065, 1440100, 1872130, 3744260, 4680325, 9360650, 18721300]

約数ペア:

[(1, 18721300), (2, 9360650), (4, 4680325), (5, 3744260), (10, 1872130), (13, 1440100), (20, 936065), (25, 748852), (26, 720050), (50, 374426), (52, 360025), (65, 288020), (100, 187213), (130, 144010), (260, 72005), (325, 57604), (650, 28802), (1300, 14401)]