20270565

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{317}}^1$

素因数の和:371

約数の個数: 72

約数和(自身を含む): 42414840

約数和(自身を除く): 22144275

約数列:

[1, 3, 5, 7, 9, 15, 21, 29, 35, 45, 49, 63, 87, 105, 145, 147, 203, 245, 261, 315, 317, 435, 441, 609, 735, 951, 1015, 1305, 1421, 1585, 1827, 2205, 2219, 2853, 3045, 4263, 4755, 6657, 7105, 9135, 9193, 11095, 12789, 14265, 15533, 19971, 21315, 27579, 33285, 45965, 46599, 63945, 64351, 77665, 82737, 99855, 137895, 139797, 193053, 232995, 321755, 413685, 450457, 579159, 698985, 965265, 1351371, 2252285, 2895795, 4054113, 6756855, 20270565]

約数ペア:

[(1, 20270565), (3, 6756855), (5, 4054113), (7, 2895795), (9, 2252285), (15, 1351371), (21, 965265), (29, 698985), (35, 579159), (45, 450457), (49, 413685), (63, 321755), (87, 232995), (105, 193053), (145, 139797), (147, 137895), (203, 99855), (245, 82737), (261, 77665), (315, 64351), (317, 63945), (435, 46599), (441, 45965), (609, 33285), (735, 27579), (951, 21315), (1015, 19971), (1305, 15533), (1421, 14265), (1585, 12789), (1827, 11095), (2205, 9193), (2219, 9135), (2853, 7105), (3045, 6657), (4263, 4755)]