668730668

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1\times {\mathrm{337}}^1$

素因数の和:606

約数の個数: 48

約数和(自身を含む): 1224263040

約数和(自身を除く): 555532372

約数列:

[1, 2, 4, 43, 83, 86, 139, 166, 172, 278, 332, 337, 556, 674, 1348, 3569, 5977, 7138, 11537, 11954, 14276, 14491, 23074, 23908, 27971, 28982, 46148, 46843, 55942, 57964, 93686, 111884, 187372, 496091, 992182, 1202753, 1984364, 2014249, 2405506, 3887969, 4028498, 4811012, 7775938, 8056996, 15551876, 167182667, 334365334, 668730668]

約数ペア:

[(1, 668730668), (2, 334365334), (4, 167182667), (43, 15551876), (83, 8056996), (86, 7775938), (139, 4811012), (166, 4028498), (172, 3887969), (278, 2405506), (332, 2014249), (337, 1984364), (556, 1202753), (674, 992182), (1348, 496091), (3569, 187372), (5977, 111884), (7138, 93686), (11537, 57964), (11954, 55942), (14276, 46843), (14491, 46148), (23074, 28982), (23908, 27971)]