21086300

素因数分解:

$2^2\times 5^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:231

約数の個数: 72

約数和(自身を含む): 48486480

約数和(自身を除く): 27400180

約数列:

[1, 2, 4, 5, 10, 20, 25, 37, 41, 50, 74, 82, 100, 139, 148, 164, 185, 205, 278, 370, 410, 556, 695, 740, 820, 925, 1025, 1390, 1517, 1850, 2050, 2780, 3034, 3475, 3700, 4100, 5143, 5699, 6068, 6950, 7585, 10286, 11398, 13900, 15170, 20572, 22796, 25715, 28495, 30340, 37925, 51430, 56990, 75850, 102860, 113980, 128575, 142475, 151700, 210863, 257150, 284950, 421726, 514300, 569900, 843452, 1054315, 2108630, 4217260, 5271575, 10543150, 21086300]

約数ペア:

[(1, 21086300), (2, 10543150), (4, 5271575), (5, 4217260), (10, 2108630), (20, 1054315), (25, 843452), (37, 569900), (41, 514300), (50, 421726), (74, 284950), (82, 257150), (100, 210863), (139, 151700), (148, 142475), (164, 128575), (185, 113980), (205, 102860), (278, 75850), (370, 56990), (410, 51430), (556, 37925), (695, 30340), (740, 28495), (820, 25715), (925, 22796), (1025, 20572), (1390, 15170), (1517, 13900), (1850, 11398), (2050, 10286), (2780, 7585), (3034, 6950), (3475, 6068), (3700, 5699), (4100, 5143)]