20281014

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^2\times {\mathrm{59}}^1\times {\mathrm{113}}^1$

素因数の和:206

約数の個数: 72

約数和(自身を含む): 48817080

約数和(自身を除く): 28536066

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 59, 78, 113, 117, 118, 169, 177, 226, 234, 338, 339, 354, 507, 531, 678, 767, 1014, 1017, 1062, 1469, 1521, 1534, 2034, 2301, 2938, 3042, 4407, 4602, 6667, 6903, 8814, 9971, 13221, 13334, 13806, 19097, 19942, 20001, 26442, 29913, 38194, 40002, 57291, 59826, 60003, 86671, 89739, 114582, 120006, 171873, 173342, 179478, 260013, 343746, 520026, 780039, 1126723, 1560078, 2253446, 3380169, 6760338, 10140507, 20281014]

約数ペア:

[(1, 20281014), (2, 10140507), (3, 6760338), (6, 3380169), (9, 2253446), (13, 1560078), (18, 1126723), (26, 780039), (39, 520026), (59, 343746), (78, 260013), (113, 179478), (117, 173342), (118, 171873), (169, 120006), (177, 114582), (226, 89739), (234, 86671), (338, 60003), (339, 59826), (354, 57291), (507, 40002), (531, 38194), (678, 29913), (767, 26442), (1014, 20001), (1017, 19942), (1062, 19097), (1469, 13806), (1521, 13334), (1534, 13221), (2034, 9971), (2301, 8814), (2938, 6903), (3042, 6667), (4407, 4602)]