64754560

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:256

約数の個数: 128

約数和(自身を含む): 171531360

約数和(自身を除く): 106776800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 43, 52, 64, 65, 80, 86, 104, 128, 130, 160, 172, 181, 208, 215, 260, 320, 344, 362, 416, 430, 520, 559, 640, 688, 724, 832, 860, 905, 1040, 1118, 1376, 1448, 1664, 1720, 1810, 2080, 2236, 2353, 2752, 2795, 2896, 3440, 3620, 4160, 4472, 4706, 5504, 5590, 5792, 6880, 7240, 7783, 8320, 8944, 9412, 11180, 11584, 11765, 13760, 14480, 15566, 17888, 18824, 22360, 23168, 23530, 27520, 28960, 31132, 35776, 37648, 38915, 44720, 47060, 57920, 62264, 71552, 75296, 77830, 89440, 94120, 101179, 115840, 124528, 150592, 155660, 178880, 188240, 202358, 249056, 301184, 311320, 357760, 376480, 404716, 498112, 505895, 622640, 752960, 809432, 996224, 1011790, 1245280, 1505920, 1618864, 2023580, 2490560, 3237728, 4047160, 4981120, 6475456, 8094320, 12950912, 16188640, 32377280, 64754560]

約数ペア:

[(1, 64754560), (2, 32377280), (4, 16188640), (5, 12950912), (8, 8094320), (10, 6475456), (13, 4981120), (16, 4047160), (20, 3237728), (26, 2490560), (32, 2023580), (40, 1618864), (43, 1505920), (52, 1245280), (64, 1011790), (65, 996224), (80, 809432), (86, 752960), (104, 622640), (128, 505895), (130, 498112), (160, 404716), (172, 376480), (181, 357760), (208, 311320), (215, 301184), (260, 249056), (320, 202358), (344, 188240), (362, 178880), (416, 155660), (430, 150592), (520, 124528), (559, 115840), (640, 101179), (688, 94120), (724, 89440), (832, 77830), (860, 75296), (905, 71552), (1040, 62264), (1118, 57920), (1376, 47060), (1448, 44720), (1664, 38915), (1720, 37648), (1810, 35776), (2080, 31132), (2236, 28960), (2353, 27520), (2752, 23530), (2795, 23168), (2896, 22360), (3440, 18824), (3620, 17888), (4160, 15566), (4472, 14480), (4706, 13760), (5504, 11765), (5590, 11584), (5792, 11180), (6880, 9412), (7240, 8944), (7783, 8320)]