1981928

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1$

素因数の和:114

約数の個数: 64

約数和(自身を含む): 4536000

約数和(自身を除く): 2554072

約数列:

[1, 2, 4, 8, 13, 17, 19, 26, 34, 38, 52, 59, 68, 76, 104, 118, 136, 152, 221, 236, 247, 323, 442, 472, 494, 646, 767, 884, 988, 1003, 1121, 1292, 1534, 1768, 1976, 2006, 2242, 2584, 3068, 4012, 4199, 4484, 6136, 8024, 8398, 8968, 13039, 14573, 16796, 19057, 26078, 29146, 33592, 38114, 52156, 58292, 76228, 104312, 116584, 152456, 247741, 495482, 990964, 1981928]

約数ペア:

[(1, 1981928), (2, 990964), (4, 495482), (8, 247741), (13, 152456), (17, 116584), (19, 104312), (26, 76228), (34, 58292), (38, 52156), (52, 38114), (59, 33592), (68, 29146), (76, 26078), (104, 19057), (118, 16796), (136, 14573), (152, 13039), (221, 8968), (236, 8398), (247, 8024), (323, 6136), (442, 4484), (472, 4199), (494, 4012), (646, 3068), (767, 2584), (884, 2242), (988, 2006), (1003, 1976), (1121, 1768), (1292, 1534)]