20193280

素因数分解:

$2^{13}\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1$

素因数の和:77

約数の個数: 112

約数和(自身を含む): 53080920

約数和(自身を除く): 32887640

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 29, 32, 34, 40, 58, 64, 68, 80, 85, 116, 128, 136, 145, 160, 170, 232, 256, 272, 290, 320, 340, 464, 493, 512, 544, 580, 640, 680, 928, 986, 1024, 1088, 1160, 1280, 1360, 1856, 1972, 2048, 2176, 2320, 2465, 2560, 2720, 3712, 3944, 4096, 4352, 4640, 4930, 5120, 5440, 7424, 7888, 8192, 8704, 9280, 9860, 10240, 10880, 14848, 15776, 17408, 18560, 19720, 20480, 21760, 29696, 31552, 34816, 37120, 39440, 40960, 43520, 59392, 63104, 69632, 74240, 78880, 87040, 118784, 126208, 139264, 148480, 157760, 174080, 237568, 252416, 296960, 315520, 348160, 504832, 593920, 631040, 696320, 1009664, 1187840, 1262080, 2019328, 2524160, 4038656, 5048320, 10096640, 20193280]

約数ペア:

[(1, 20193280), (2, 10096640), (4, 5048320), (5, 4038656), (8, 2524160), (10, 2019328), (16, 1262080), (17, 1187840), (20, 1009664), (29, 696320), (32, 631040), (34, 593920), (40, 504832), (58, 348160), (64, 315520), (68, 296960), (80, 252416), (85, 237568), (116, 174080), (128, 157760), (136, 148480), (145, 139264), (160, 126208), (170, 118784), (232, 87040), (256, 78880), (272, 74240), (290, 69632), (320, 63104), (340, 59392), (464, 43520), (493, 40960), (512, 39440), (544, 37120), (580, 34816), (640, 31552), (680, 29696), (928, 21760), (986, 20480), (1024, 19720), (1088, 18560), (1160, 17408), (1280, 15776), (1360, 14848), (1856, 10880), (1972, 10240), (2048, 9860), (2176, 9280), (2320, 8704), (2465, 8192), (2560, 7888), (2720, 7424), (3712, 5440), (3944, 5120), (4096, 4930), (4352, 4640)]