20607195

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{23}}^2\times {\mathrm{53}}^1$

素因数の和:121

約数の個数: 72

約数和(自身を含む): 40851216

約数和(自身を除く): 20244021

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 49, 53, 69, 105, 115, 147, 159, 161, 245, 265, 345, 371, 483, 529, 735, 795, 805, 1113, 1127, 1219, 1587, 1855, 2415, 2597, 2645, 3381, 3657, 3703, 5565, 5635, 6095, 7791, 7935, 8533, 11109, 12985, 16905, 18285, 18515, 25599, 25921, 28037, 38955, 42665, 55545, 59731, 77763, 84111, 127995, 129605, 140185, 179193, 196259, 298655, 388815, 420555, 588777, 895965, 981295, 1373813, 2943885, 4121439, 6869065, 20607195]

約数ペア:

[(1, 20607195), (3, 6869065), (5, 4121439), (7, 2943885), (15, 1373813), (21, 981295), (23, 895965), (35, 588777), (49, 420555), (53, 388815), (69, 298655), (105, 196259), (115, 179193), (147, 140185), (159, 129605), (161, 127995), (245, 84111), (265, 77763), (345, 59731), (371, 55545), (483, 42665), (529, 38955), (735, 28037), (795, 25921), (805, 25599), (1113, 18515), (1127, 18285), (1219, 16905), (1587, 12985), (1855, 11109), (2415, 8533), (2597, 7935), (2645, 7791), (3381, 6095), (3657, 5635), (3703, 5565)]