28121216

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{373}}^1$

素因数の和:437

約数の個数: 64

約数和(自身を含む): 61036800

約数和(自身を除く): 32915584

約数列:

[1, 2, 4, 8, 16, 19, 31, 32, 38, 62, 64, 76, 124, 128, 152, 248, 304, 373, 496, 589, 608, 746, 992, 1178, 1216, 1492, 1984, 2356, 2432, 2984, 3968, 4712, 5968, 7087, 9424, 11563, 11936, 14174, 18848, 23126, 23872, 28348, 37696, 46252, 47744, 56696, 75392, 92504, 113392, 185008, 219697, 226784, 370016, 439394, 453568, 740032, 878788, 907136, 1480064, 1757576, 3515152, 7030304, 14060608, 28121216]

約数ペア:

[(1, 28121216), (2, 14060608), (4, 7030304), (8, 3515152), (16, 1757576), (19, 1480064), (31, 907136), (32, 878788), (38, 740032), (62, 453568), (64, 439394), (76, 370016), (124, 226784), (128, 219697), (152, 185008), (248, 113392), (304, 92504), (373, 75392), (496, 56696), (589, 47744), (608, 46252), (746, 37696), (992, 28348), (1178, 23872), (1216, 23126), (1492, 18848), (1984, 14174), (2356, 11936), (2432, 11563), (2984, 9424), (3968, 7087), (4712, 5968)]