20958840

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{8317}}^1$

素因数の和:8341

約数の個数: 96

約数和(自身を含む): 77856480

約数和(自身を除く): 56897640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 630, 840, 1260, 2520, 8317, 16634, 24951, 33268, 41585, 49902, 58219, 66536, 74853, 83170, 99804, 116438, 124755, 149706, 166340, 174657, 199608, 232876, 249510, 291095, 299412, 332680, 349314, 374265, 465752, 499020, 523971, 582190, 598824, 698628, 748530, 873285, 998040, 1047942, 1164380, 1397256, 1497060, 1746570, 2095884, 2328760, 2619855, 2994120, 3493140, 4191768, 5239710, 6986280, 10479420, 20958840]

約数ペア:

[(1, 20958840), (2, 10479420), (3, 6986280), (4, 5239710), (5, 4191768), (6, 3493140), (7, 2994120), (8, 2619855), (9, 2328760), (10, 2095884), (12, 1746570), (14, 1497060), (15, 1397256), (18, 1164380), (20, 1047942), (21, 998040), (24, 873285), (28, 748530), (30, 698628), (35, 598824), (36, 582190), (40, 523971), (42, 499020), (45, 465752), (56, 374265), (60, 349314), (63, 332680), (70, 299412), (72, 291095), (84, 249510), (90, 232876), (105, 199608), (120, 174657), (126, 166340), (140, 149706), (168, 124755), (180, 116438), (210, 99804), (252, 83170), (280, 74853), (315, 66536), (360, 58219), (420, 49902), (504, 41585), (630, 33268), (840, 24951), (1260, 16634), (2520, 8317)]