123237540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{9643}}^1$

素因数の和:9729

約数の個数: 72

約数和(自身を含む): 379124928

約数和(自身を除く): 255887388

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2556, 3195, 4260, 6390, 9643, 12780, 19286, 28929, 38572, 48215, 57858, 86787, 96430, 115716, 144645, 173574, 192860, 289290, 347148, 433935, 578580, 684653, 867870, 1369306, 1735740, 2053959, 2738612, 3423265, 4107918, 6161877, 6846530, 8215836, 10269795, 12323754, 13693060, 20539590, 24647508, 30809385, 41079180, 61618770, 123237540]

約数ペア:

[(1, 123237540), (2, 61618770), (3, 41079180), (4, 30809385), (5, 24647508), (6, 20539590), (9, 13693060), (10, 12323754), (12, 10269795), (15, 8215836), (18, 6846530), (20, 6161877), (30, 4107918), (36, 3423265), (45, 2738612), (60, 2053959), (71, 1735740), (90, 1369306), (142, 867870), (180, 684653), (213, 578580), (284, 433935), (355, 347148), (426, 289290), (639, 192860), (710, 173574), (852, 144645), (1065, 115716), (1278, 96430), (1420, 86787), (2130, 57858), (2556, 48215), (3195, 38572), (4260, 28929), (6390, 19286), (9643, 12780)]