17777920

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:100

約数の個数: 144

約数和(自身を含む): 48565440

約数和(自身を除く): 30787520

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 32, 34, 38, 40, 43, 64, 68, 76, 80, 85, 86, 95, 128, 136, 152, 160, 170, 172, 190, 215, 256, 272, 304, 320, 323, 340, 344, 380, 430, 544, 608, 640, 646, 680, 688, 731, 760, 817, 860, 1088, 1216, 1280, 1292, 1360, 1376, 1462, 1520, 1615, 1634, 1720, 2176, 2432, 2584, 2720, 2752, 2924, 3040, 3230, 3268, 3440, 3655, 4085, 4352, 4864, 5168, 5440, 5504, 5848, 6080, 6460, 6536, 6880, 7310, 8170, 10336, 10880, 11008, 11696, 12160, 12920, 13072, 13760, 13889, 14620, 16340, 20672, 21760, 23392, 24320, 25840, 26144, 27520, 27778, 29240, 32680, 41344, 46784, 51680, 52288, 55040, 55556, 58480, 65360, 69445, 82688, 93568, 103360, 104576, 111112, 116960, 130720, 138890, 187136, 206720, 209152, 222224, 233920, 261440, 277780, 413440, 444448, 467840, 522880, 555560, 888896, 935680, 1045760, 1111120, 1777792, 2222240, 3555584, 4444480, 8888960, 17777920]

約数ペア:

[(1, 17777920), (2, 8888960), (4, 4444480), (5, 3555584), (8, 2222240), (10, 1777792), (16, 1111120), (17, 1045760), (19, 935680), (20, 888896), (32, 555560), (34, 522880), (38, 467840), (40, 444448), (43, 413440), (64, 277780), (68, 261440), (76, 233920), (80, 222224), (85, 209152), (86, 206720), (95, 187136), (128, 138890), (136, 130720), (152, 116960), (160, 111112), (170, 104576), (172, 103360), (190, 93568), (215, 82688), (256, 69445), (272, 65360), (304, 58480), (320, 55556), (323, 55040), (340, 52288), (344, 51680), (380, 46784), (430, 41344), (544, 32680), (608, 29240), (640, 27778), (646, 27520), (680, 26144), (688, 25840), (731, 24320), (760, 23392), (817, 21760), (860, 20672), (1088, 16340), (1216, 14620), (1280, 13889), (1292, 13760), (1360, 13072), (1376, 12920), (1462, 12160), (1520, 11696), (1615, 11008), (1634, 10880), (1720, 10336), (2176, 8170), (2432, 7310), (2584, 6880), (2720, 6536), (2752, 6460), (2924, 6080), (3040, 5848), (3230, 5504), (3268, 5440), (3440, 5168), (3655, 4864), (4085, 4352)]