20688300

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{127}}^1\times {\mathrm{181}}^1$

素因数の和:328

約数の個数: 108

約数和(自身を含む): 65718016

約数和(自身を除く): 45029716

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 127, 150, 180, 181, 225, 254, 300, 362, 381, 450, 508, 543, 635, 724, 762, 900, 905, 1086, 1143, 1270, 1524, 1629, 1810, 1905, 2172, 2286, 2540, 2715, 3175, 3258, 3620, 3810, 4525, 4572, 5430, 5715, 6350, 6516, 7620, 8145, 9050, 9525, 10860, 11430, 12700, 13575, 16290, 18100, 19050, 22860, 22987, 27150, 28575, 32580, 38100, 40725, 45974, 54300, 57150, 68961, 81450, 91948, 114300, 114935, 137922, 162900, 206883, 229870, 275844, 344805, 413766, 459740, 574675, 689610, 827532, 1034415, 1149350, 1379220, 1724025, 2068830, 2298700, 3448050, 4137660, 5172075, 6896100, 10344150, 20688300]

約数ペア:

[(1, 20688300), (2, 10344150), (3, 6896100), (4, 5172075), (5, 4137660), (6, 3448050), (9, 2298700), (10, 2068830), (12, 1724025), (15, 1379220), (18, 1149350), (20, 1034415), (25, 827532), (30, 689610), (36, 574675), (45, 459740), (50, 413766), (60, 344805), (75, 275844), (90, 229870), (100, 206883), (127, 162900), (150, 137922), (180, 114935), (181, 114300), (225, 91948), (254, 81450), (300, 68961), (362, 57150), (381, 54300), (450, 45974), (508, 40725), (543, 38100), (635, 32580), (724, 28575), (762, 27150), (900, 22987), (905, 22860), (1086, 19050), (1143, 18100), (1270, 16290), (1524, 13575), (1629, 12700), (1810, 11430), (1905, 10860), (2172, 9525), (2286, 9050), (2540, 8145), (2715, 7620), (3175, 6516), (3258, 6350), (3620, 5715), (3810, 5430), (4525, 4572)]