20184795

素因数分解:

$3^5\times 5^1\times {\mathrm{37}}^1\times {\mathrm{449}}^1$

素因数の和:506

約数の個数: 48

約数和(自身を含む): 37346400

約数和(自身を除く): 17161605

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 81, 111, 135, 185, 243, 333, 405, 449, 555, 999, 1215, 1347, 1665, 2245, 2997, 4041, 4995, 6735, 8991, 12123, 14985, 16613, 20205, 36369, 44955, 49839, 60615, 83065, 109107, 149517, 181845, 249195, 448551, 545535, 747585, 1345653, 2242755, 4036959, 6728265, 20184795]

約数ペア:

[(1, 20184795), (3, 6728265), (5, 4036959), (9, 2242755), (15, 1345653), (27, 747585), (37, 545535), (45, 448551), (81, 249195), (111, 181845), (135, 149517), (185, 109107), (243, 83065), (333, 60615), (405, 49839), (449, 44955), (555, 36369), (999, 20205), (1215, 16613), (1347, 14985), (1665, 12123), (2245, 8991), (2997, 6735), (4041, 4995)]