51418880

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^2\times {\mathrm{139}}^1$

素因数の和:194

約数の個数: 108

約数和(自身を含む): 131776680

約数和(自身を除く): 80357800

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 139, 160, 170, 256, 272, 278, 289, 320, 340, 544, 556, 578, 640, 680, 695, 1088, 1112, 1156, 1280, 1360, 1390, 1445, 2176, 2224, 2312, 2363, 2720, 2780, 2890, 4352, 4448, 4624, 4726, 5440, 5560, 5780, 8896, 9248, 9452, 10880, 11120, 11560, 11815, 17792, 18496, 18904, 21760, 22240, 23120, 23630, 35584, 36992, 37808, 40171, 44480, 46240, 47260, 73984, 75616, 80342, 88960, 92480, 94520, 151232, 160684, 177920, 184960, 189040, 200855, 302464, 321368, 369920, 378080, 401710, 604928, 642736, 756160, 803420, 1285472, 1512320, 1606840, 2570944, 3024640, 3213680, 5141888, 6427360, 10283776, 12854720, 25709440, 51418880]

約数ペア:

[(1, 51418880), (2, 25709440), (4, 12854720), (5, 10283776), (8, 6427360), (10, 5141888), (16, 3213680), (17, 3024640), (20, 2570944), (32, 1606840), (34, 1512320), (40, 1285472), (64, 803420), (68, 756160), (80, 642736), (85, 604928), (128, 401710), (136, 378080), (139, 369920), (160, 321368), (170, 302464), (256, 200855), (272, 189040), (278, 184960), (289, 177920), (320, 160684), (340, 151232), (544, 94520), (556, 92480), (578, 88960), (640, 80342), (680, 75616), (695, 73984), (1088, 47260), (1112, 46240), (1156, 44480), (1280, 40171), (1360, 37808), (1390, 36992), (1445, 35584), (2176, 23630), (2224, 23120), (2312, 22240), (2363, 21760), (2720, 18904), (2780, 18496), (2890, 17792), (4352, 11815), (4448, 11560), (4624, 11120), (4726, 10880), (5440, 9452), (5560, 9248), (5780, 8896)]