128629664

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{1021}}^1$

素因数の和:1189

約数の個数: 48

約数和(自身を含む): 263725056

約数和(自身を除く): 135095392

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 124, 127, 248, 254, 496, 508, 992, 1016, 1021, 2032, 2042, 3937, 4064, 4084, 7874, 8168, 15748, 16336, 31496, 31651, 32672, 62992, 63302, 125984, 126604, 129667, 253208, 259334, 506416, 518668, 1012832, 1037336, 2074672, 4019677, 4149344, 8039354, 16078708, 32157416, 64314832, 128629664]

約数ペア:

[(1, 128629664), (2, 64314832), (4, 32157416), (8, 16078708), (16, 8039354), (31, 4149344), (32, 4019677), (62, 2074672), (124, 1037336), (127, 1012832), (248, 518668), (254, 506416), (496, 259334), (508, 253208), (992, 129667), (1016, 126604), (1021, 125984), (2032, 63302), (2042, 62992), (3937, 32672), (4064, 31651), (4084, 31496), (7874, 16336), (8168, 15748)]