289172884

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{72221}}^1$

素因数の和:72256

約数の個数: 48

約数和(自身を含む): 679464576

約数和(自身を除く): 390291692

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 143, 154, 182, 286, 308, 364, 572, 1001, 2002, 4004, 72221, 144442, 288884, 505547, 794431, 938873, 1011094, 1588862, 1877746, 2022188, 3177724, 3755492, 5561017, 6572111, 10327603, 11122034, 13144222, 20655206, 22244068, 26288444, 41310412, 72293221, 144586442, 289172884]

約数ペア:

[(1, 289172884), (2, 144586442), (4, 72293221), (7, 41310412), (11, 26288444), (13, 22244068), (14, 20655206), (22, 13144222), (26, 11122034), (28, 10327603), (44, 6572111), (52, 5561017), (77, 3755492), (91, 3177724), (143, 2022188), (154, 1877746), (182, 1588862), (286, 1011094), (308, 938873), (364, 794431), (572, 505547), (1001, 288884), (2002, 144442), (4004, 72221)]