20040960

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{307}}^1$

素因数の和:348

約数の個数: 144

約数和(自身を含む): 67991616

約数和(自身を除く): 47950656

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 64, 68, 80, 85, 96, 102, 120, 128, 136, 160, 170, 192, 204, 240, 255, 256, 272, 307, 320, 340, 384, 408, 480, 510, 544, 614, 640, 680, 768, 816, 921, 960, 1020, 1088, 1228, 1280, 1360, 1535, 1632, 1842, 1920, 2040, 2176, 2456, 2720, 3070, 3264, 3684, 3840, 4080, 4352, 4605, 4912, 5219, 5440, 6140, 6528, 7368, 8160, 9210, 9824, 10438, 10880, 12280, 13056, 14736, 15657, 16320, 18420, 19648, 20876, 21760, 24560, 26095, 29472, 31314, 32640, 36840, 39296, 41752, 49120, 52190, 58944, 62628, 65280, 73680, 78285, 78592, 83504, 98240, 104380, 117888, 125256, 147360, 156570, 167008, 196480, 208760, 235776, 250512, 294720, 313140, 334016, 392960, 417520, 501024, 589440, 626280, 668032, 835040, 1002048, 1178880, 1252560, 1336064, 1670080, 2004096, 2505120, 3340160, 4008192, 5010240, 6680320, 10020480, 20040960]

約数ペア:

[(1, 20040960), (2, 10020480), (3, 6680320), (4, 5010240), (5, 4008192), (6, 3340160), (8, 2505120), (10, 2004096), (12, 1670080), (15, 1336064), (16, 1252560), (17, 1178880), (20, 1002048), (24, 835040), (30, 668032), (32, 626280), (34, 589440), (40, 501024), (48, 417520), (51, 392960), (60, 334016), (64, 313140), (68, 294720), (80, 250512), (85, 235776), (96, 208760), (102, 196480), (120, 167008), (128, 156570), (136, 147360), (160, 125256), (170, 117888), (192, 104380), (204, 98240), (240, 83504), (255, 78592), (256, 78285), (272, 73680), (307, 65280), (320, 62628), (340, 58944), (384, 52190), (408, 49120), (480, 41752), (510, 39296), (544, 36840), (614, 32640), (640, 31314), (680, 29472), (768, 26095), (816, 24560), (921, 21760), (960, 20876), (1020, 19648), (1088, 18420), (1228, 16320), (1280, 15657), (1360, 14736), (1535, 13056), (1632, 12280), (1842, 10880), (1920, 10438), (2040, 9824), (2176, 9210), (2456, 8160), (2720, 7368), (3070, 6528), (3264, 6140), (3684, 5440), (3840, 5219), (4080, 4912), (4352, 4605)]