621765568

素因数分解:

$2^6\times {\mathrm{29}}^1\times {\mathrm{521}}^1\times {\mathrm{643}}^1$

素因数の和:1205

約数の個数: 56

約数和(自身を含む): 1280800080

約数和(自身を除く): 659034512

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 116, 232, 464, 521, 643, 928, 1042, 1286, 1856, 2084, 2572, 4168, 5144, 8336, 10288, 15109, 16672, 18647, 20576, 30218, 33344, 37294, 41152, 60436, 74588, 120872, 149176, 241744, 298352, 335003, 483488, 596704, 670006, 966976, 1193408, 1340012, 2680024, 5360048, 9715087, 10720096, 19430174, 21440192, 38860348, 77720696, 155441392, 310882784, 621765568]

約数ペア:

[(1, 621765568), (2, 310882784), (4, 155441392), (8, 77720696), (16, 38860348), (29, 21440192), (32, 19430174), (58, 10720096), (64, 9715087), (116, 5360048), (232, 2680024), (464, 1340012), (521, 1193408), (643, 966976), (928, 670006), (1042, 596704), (1286, 483488), (1856, 335003), (2084, 298352), (2572, 241744), (4168, 149176), (5144, 120872), (8336, 74588), (10288, 60436), (15109, 41152), (16672, 37294), (18647, 33344), (20576, 30218)]