20235067245

素因数分解:

$3^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{251071}}^1$

素因数の和:251287

約数の個数: 40

約数和(自身を含む): 36455654400

約数和(自身を除く): 16220587155

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 199, 405, 597, 995, 1791, 2985, 5373, 8955, 16119, 26865, 80595, 251071, 753213, 1255355, 2259639, 3766065, 6778917, 11298195, 20336751, 33894585, 49963129, 101683755, 149889387, 249815645, 449668161, 749446935, 1349004483, 2248340805, 4047013449, 6745022415, 20235067245]

約数ペア:

[(1, 20235067245), (3, 6745022415), (5, 4047013449), (9, 2248340805), (15, 1349004483), (27, 749446935), (45, 449668161), (81, 249815645), (135, 149889387), (199, 101683755), (405, 49963129), (597, 33894585), (995, 20336751), (1791, 11298195), (2985, 6778917), (5373, 3766065), (8955, 2259639), (16119, 1255355), (26865, 753213), (80595, 251071)]