28919381876

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{389}}^1\times {\mathrm{21943}}^1$

素因数の和:22365

約数の個数: 72

約数和(自身を含む): 63741175680

約数和(自身を除く): 34821793804

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 121, 154, 242, 308, 389, 484, 778, 847, 1556, 1694, 2723, 3388, 4279, 5446, 8558, 10892, 17116, 21943, 29953, 43886, 47069, 59906, 87772, 94138, 119812, 153601, 188276, 241373, 307202, 329483, 482746, 614404, 658966, 965492, 1317932, 1689611, 2655103, 3379222, 5310206, 6758444, 8535827, 10620412, 17071654, 18585721, 34143308, 37171442, 59750789, 74342884, 93894097, 119501578, 187788194, 239003156, 375576388, 657258679, 1032835067, 1314517358, 2065670134, 2629034716, 4131340268, 7229845469, 14459690938, 28919381876]

約数ペア:

[(1, 28919381876), (2, 14459690938), (4, 7229845469), (7, 4131340268), (11, 2629034716), (14, 2065670134), (22, 1314517358), (28, 1032835067), (44, 657258679), (77, 375576388), (121, 239003156), (154, 187788194), (242, 119501578), (308, 93894097), (389, 74342884), (484, 59750789), (778, 37171442), (847, 34143308), (1556, 18585721), (1694, 17071654), (2723, 10620412), (3388, 8535827), (4279, 6758444), (5446, 5310206), (8558, 3379222), (10892, 2655103), (17116, 1689611), (21943, 1317932), (29953, 965492), (43886, 658966), (47069, 614404), (59906, 482746), (87772, 329483), (94138, 307202), (119812, 241373), (153601, 188276)]