20612880

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{3181}}^1$

素因数の和:3206

約数の個数: 100

約数和(自身を含む): 71614092

約数和(自身を除く): 51001212

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, 270, 324, 360, 405, 432, 540, 648, 720, 810, 1080, 1296, 1620, 2160, 3181, 3240, 6362, 6480, 9543, 12724, 15905, 19086, 25448, 28629, 31810, 38172, 47715, 50896, 57258, 63620, 76344, 85887, 95430, 114516, 127240, 143145, 152688, 171774, 190860, 229032, 254480, 257661, 286290, 343548, 381720, 429435, 458064, 515322, 572580, 687096, 763440, 858870, 1030644, 1145160, 1288305, 1374192, 1717740, 2061288, 2290320, 2576610, 3435480, 4122576, 5153220, 6870960, 10306440, 20612880]

約数ペア:

[(1, 20612880), (2, 10306440), (3, 6870960), (4, 5153220), (5, 4122576), (6, 3435480), (8, 2576610), (9, 2290320), (10, 2061288), (12, 1717740), (15, 1374192), (16, 1288305), (18, 1145160), (20, 1030644), (24, 858870), (27, 763440), (30, 687096), (36, 572580), (40, 515322), (45, 458064), (48, 429435), (54, 381720), (60, 343548), (72, 286290), (80, 257661), (81, 254480), (90, 229032), (108, 190860), (120, 171774), (135, 152688), (144, 143145), (162, 127240), (180, 114516), (216, 95430), (240, 85887), (270, 76344), (324, 63620), (360, 57258), (405, 50896), (432, 47715), (540, 38172), (648, 31810), (720, 28629), (810, 25448), (1080, 19086), (1296, 15905), (1620, 12724), (2160, 9543), (3181, 6480), (3240, 6362)]