81931264

素因数分解:

$2^{10}\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:169

約数の個数: 88

約数和(自身を含む): 176860800

約数和(自身を除く): 94929536

約数列:

[1, 2, 4, 8, 16, 29, 31, 32, 58, 62, 64, 89, 116, 124, 128, 178, 232, 248, 256, 356, 464, 496, 512, 712, 899, 928, 992, 1024, 1424, 1798, 1856, 1984, 2581, 2759, 2848, 3596, 3712, 3968, 5162, 5518, 5696, 7192, 7424, 7936, 10324, 11036, 11392, 14384, 14848, 15872, 20648, 22072, 22784, 28768, 29696, 31744, 41296, 44144, 45568, 57536, 80011, 82592, 88288, 91136, 115072, 160022, 165184, 176576, 230144, 320044, 330368, 353152, 460288, 640088, 660736, 706304, 920576, 1280176, 1321472, 1412608, 2560352, 2642944, 2825216, 5120704, 10241408, 20482816, 40965632, 81931264]

約数ペア:

[(1, 81931264), (2, 40965632), (4, 20482816), (8, 10241408), (16, 5120704), (29, 2825216), (31, 2642944), (32, 2560352), (58, 1412608), (62, 1321472), (64, 1280176), (89, 920576), (116, 706304), (124, 660736), (128, 640088), (178, 460288), (232, 353152), (248, 330368), (256, 320044), (356, 230144), (464, 176576), (496, 165184), (512, 160022), (712, 115072), (899, 91136), (928, 88288), (992, 82592), (1024, 80011), (1424, 57536), (1798, 45568), (1856, 44144), (1984, 41296), (2581, 31744), (2759, 29696), (2848, 28768), (3596, 22784), (3712, 22072), (3968, 20648), (5162, 15872), (5518, 14848), (5696, 14384), (7192, 11392), (7424, 11036), (7936, 10324)]