20149760

素因数分解:

$2^9\times 5^1\times {\mathrm{17}}^1\times {\mathrm{463}}^1$

素因数の和:503

約数の個数: 80

約数和(自身を含む): 51264576

約数和(自身を除く): 31114816

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 463, 512, 544, 640, 680, 926, 1088, 1280, 1360, 1852, 2176, 2315, 2560, 2720, 3704, 4352, 4630, 5440, 7408, 7871, 8704, 9260, 10880, 14816, 15742, 18520, 21760, 29632, 31484, 37040, 39355, 43520, 59264, 62968, 74080, 78710, 118528, 125936, 148160, 157420, 237056, 251872, 296320, 314840, 503744, 592640, 629680, 1007488, 1185280, 1259360, 2014976, 2518720, 4029952, 5037440, 10074880, 20149760]

約数ペア:

[(1, 20149760), (2, 10074880), (4, 5037440), (5, 4029952), (8, 2518720), (10, 2014976), (16, 1259360), (17, 1185280), (20, 1007488), (32, 629680), (34, 592640), (40, 503744), (64, 314840), (68, 296320), (80, 251872), (85, 237056), (128, 157420), (136, 148160), (160, 125936), (170, 118528), (256, 78710), (272, 74080), (320, 62968), (340, 59264), (463, 43520), (512, 39355), (544, 37040), (640, 31484), (680, 29632), (926, 21760), (1088, 18520), (1280, 15742), (1360, 14816), (1852, 10880), (2176, 9260), (2315, 8704), (2560, 7871), (2720, 7408), (3704, 5440), (4352, 4630)]