20353680

素因数分解:

$2^4\times 3^6\times 5^1\times {\mathrm{349}}^1$

素因数の和:380

約数の個数: 140

約数和(自身を含む): 71154300

約数和(自身を除く): 50800620

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 243, 270, 324, 349, 360, 405, 432, 486, 540, 648, 698, 720, 729, 810, 972, 1047, 1080, 1215, 1296, 1396, 1458, 1620, 1745, 1944, 2094, 2160, 2430, 2792, 2916, 3141, 3240, 3490, 3645, 3888, 4188, 4860, 5235, 5584, 5832, 6282, 6480, 6980, 7290, 8376, 9423, 9720, 10470, 11664, 12564, 13960, 14580, 15705, 16752, 18846, 19440, 20940, 25128, 27920, 28269, 29160, 31410, 37692, 41880, 47115, 50256, 56538, 58320, 62820, 75384, 83760, 84807, 94230, 113076, 125640, 141345, 150768, 169614, 188460, 226152, 251280, 254421, 282690, 339228, 376920, 424035, 452304, 508842, 565380, 678456, 753840, 848070, 1017684, 1130760, 1272105, 1356912, 1696140, 2035368, 2261520, 2544210, 3392280, 4070736, 5088420, 6784560, 10176840, 20353680]

約数ペア:

[(1, 20353680), (2, 10176840), (3, 6784560), (4, 5088420), (5, 4070736), (6, 3392280), (8, 2544210), (9, 2261520), (10, 2035368), (12, 1696140), (15, 1356912), (16, 1272105), (18, 1130760), (20, 1017684), (24, 848070), (27, 753840), (30, 678456), (36, 565380), (40, 508842), (45, 452304), (48, 424035), (54, 376920), (60, 339228), (72, 282690), (80, 254421), (81, 251280), (90, 226152), (108, 188460), (120, 169614), (135, 150768), (144, 141345), (162, 125640), (180, 113076), (216, 94230), (240, 84807), (243, 83760), (270, 75384), (324, 62820), (349, 58320), (360, 56538), (405, 50256), (432, 47115), (486, 41880), (540, 37692), (648, 31410), (698, 29160), (720, 28269), (729, 27920), (810, 25128), (972, 20940), (1047, 19440), (1080, 18846), (1215, 16752), (1296, 15705), (1396, 14580), (1458, 13960), (1620, 12564), (1745, 11664), (1944, 10470), (2094, 9720), (2160, 9423), (2430, 8376), (2792, 7290), (2916, 6980), (3141, 6480), (3240, 6282), (3490, 5832), (3645, 5584), (3888, 5235), (4188, 4860)]