25555456

素因数分解:

$2^9\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:145

約数の個数: 80

約数和(自身を含む): 55978560

約数和(自身を除く): 30423104

約数列:

[1, 2, 4, 8, 16, 19, 32, 37, 38, 64, 71, 74, 76, 128, 142, 148, 152, 256, 284, 296, 304, 512, 568, 592, 608, 703, 1136, 1184, 1216, 1349, 1406, 2272, 2368, 2432, 2627, 2698, 2812, 4544, 4736, 4864, 5254, 5396, 5624, 9088, 9472, 9728, 10508, 10792, 11248, 18176, 18944, 21016, 21584, 22496, 36352, 42032, 43168, 44992, 49913, 84064, 86336, 89984, 99826, 168128, 172672, 179968, 199652, 336256, 345344, 359936, 399304, 672512, 690688, 798608, 1345024, 1597216, 3194432, 6388864, 12777728, 25555456]

約数ペア:

[(1, 25555456), (2, 12777728), (4, 6388864), (8, 3194432), (16, 1597216), (19, 1345024), (32, 798608), (37, 690688), (38, 672512), (64, 399304), (71, 359936), (74, 345344), (76, 336256), (128, 199652), (142, 179968), (148, 172672), (152, 168128), (256, 99826), (284, 89984), (296, 86336), (304, 84064), (512, 49913), (568, 44992), (592, 43168), (608, 42032), (703, 36352), (1136, 22496), (1184, 21584), (1216, 21016), (1349, 18944), (1406, 18176), (2272, 11248), (2368, 10792), (2432, 10508), (2627, 9728), (2698, 9472), (2812, 9088), (4544, 5624), (4736, 5396), (4864, 5254)]