20816860320

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{140351}}^1$

素因数の和:140475

約数の個数: 144

約数和(自身を含む): 71727731712

約数和(自身を除く): 50910871392

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 103, 120, 144, 160, 180, 206, 240, 288, 309, 360, 412, 480, 515, 618, 720, 824, 927, 1030, 1236, 1440, 1545, 1648, 1854, 2060, 2472, 3090, 3296, 3708, 4120, 4635, 4944, 6180, 7416, 8240, 9270, 9888, 12360, 14832, 16480, 18540, 24720, 29664, 37080, 49440, 74160, 140351, 148320, 280702, 421053, 561404, 701755, 842106, 1122808, 1263159, 1403510, 1684212, 2105265, 2245616, 2526318, 2807020, 3368424, 4210530, 4491232, 5052636, 5614040, 6315795, 6736848, 8421060, 10105272, 11228080, 12631590, 13473696, 14456153, 16842120, 20210544, 22456160, 25263180, 28912306, 33684240, 40421088, 43368459, 50526360, 57824612, 67368480, 72280765, 86736918, 101052720, 115649224, 130105377, 144561530, 173473836, 202105440, 216842295, 231298448, 260210754, 289123060, 346947672, 433684590, 462596896, 520421508, 578246120, 650526885, 693895344, 867369180, 1040843016, 1156492240, 1301053770, 1387790688, 1734738360, 2081686032, 2312984480, 2602107540, 3469476720, 4163372064, 5204215080, 6938953440, 10408430160, 20816860320]

約数ペア:

[(1, 20816860320), (2, 10408430160), (3, 6938953440), (4, 5204215080), (5, 4163372064), (6, 3469476720), (8, 2602107540), (9, 2312984480), (10, 2081686032), (12, 1734738360), (15, 1387790688), (16, 1301053770), (18, 1156492240), (20, 1040843016), (24, 867369180), (30, 693895344), (32, 650526885), (36, 578246120), (40, 520421508), (45, 462596896), (48, 433684590), (60, 346947672), (72, 289123060), (80, 260210754), (90, 231298448), (96, 216842295), (103, 202105440), (120, 173473836), (144, 144561530), (160, 130105377), (180, 115649224), (206, 101052720), (240, 86736918), (288, 72280765), (309, 67368480), (360, 57824612), (412, 50526360), (480, 43368459), (515, 40421088), (618, 33684240), (720, 28912306), (824, 25263180), (927, 22456160), (1030, 20210544), (1236, 16842120), (1440, 14456153), (1545, 13473696), (1648, 12631590), (1854, 11228080), (2060, 10105272), (2472, 8421060), (3090, 6736848), (3296, 6315795), (3708, 5614040), (4120, 5052636), (4635, 4491232), (4944, 4210530), (6180, 3368424), (7416, 2807020), (8240, 2526318), (9270, 2245616), (9888, 2105265), (12360, 1684212), (14832, 1403510), (16480, 1263159), (18540, 1122808), (24720, 842106), (29664, 701755), (37080, 561404), (49440, 421053), (74160, 280702), (140351, 148320)]