81435904

素因数分解:

$2^8\times {\mathrm{11}}^3\times {\mathrm{239}}^1$

素因数の和:288

約数の個数: 72

約数和(自身を含む): 179544960

約数和(自身を除く): 98109056

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 121, 128, 176, 239, 242, 256, 352, 478, 484, 704, 956, 968, 1331, 1408, 1912, 1936, 2629, 2662, 2816, 3824, 3872, 5258, 5324, 7648, 7744, 10516, 10648, 15296, 15488, 21032, 21296, 28919, 30592, 30976, 42064, 42592, 57838, 61184, 84128, 85184, 115676, 168256, 170368, 231352, 318109, 336512, 340736, 462704, 636218, 673024, 925408, 1272436, 1850816, 2544872, 3701632, 5089744, 7403264, 10179488, 20358976, 40717952, 81435904]

約数ペア:

[(1, 81435904), (2, 40717952), (4, 20358976), (8, 10179488), (11, 7403264), (16, 5089744), (22, 3701632), (32, 2544872), (44, 1850816), (64, 1272436), (88, 925408), (121, 673024), (128, 636218), (176, 462704), (239, 340736), (242, 336512), (256, 318109), (352, 231352), (478, 170368), (484, 168256), (704, 115676), (956, 85184), (968, 84128), (1331, 61184), (1408, 57838), (1912, 42592), (1936, 42064), (2629, 30976), (2662, 30592), (2816, 28919), (3824, 21296), (3872, 21032), (5258, 15488), (5324, 15296), (7648, 10648), (7744, 10516)]