25015552

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:211

約数の個数: 72

約数和(自身を含む): 54370400

約数和(自身を除く): 29354848

約数列:

[1, 2, 4, 8, 16, 19, 32, 37, 38, 64, 74, 76, 128, 139, 148, 152, 256, 278, 296, 304, 556, 592, 608, 703, 1112, 1184, 1216, 1406, 2224, 2368, 2432, 2641, 2812, 4448, 4736, 4864, 5143, 5282, 5624, 8896, 9472, 10286, 10564, 11248, 17792, 20572, 21128, 22496, 35584, 41144, 42256, 44992, 82288, 84512, 89984, 97717, 164576, 169024, 179968, 195434, 329152, 338048, 390868, 658304, 676096, 781736, 1316608, 1563472, 3126944, 6253888, 12507776, 25015552]

約数ペア:

[(1, 25015552), (2, 12507776), (4, 6253888), (8, 3126944), (16, 1563472), (19, 1316608), (32, 781736), (37, 676096), (38, 658304), (64, 390868), (74, 338048), (76, 329152), (128, 195434), (139, 179968), (148, 169024), (152, 164576), (256, 97717), (278, 89984), (296, 84512), (304, 82288), (556, 44992), (592, 42256), (608, 41144), (703, 35584), (1112, 22496), (1184, 21128), (1216, 20572), (1406, 17792), (2224, 11248), (2368, 10564), (2432, 10286), (2641, 9472), (2812, 8896), (4448, 5624), (4736, 5282), (4864, 5143)]