638477685

素因数分解:

$3^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{241}}^1\times {\mathrm{521}}^1$

素因数の和:886

約数の個数: 48

約数和(自身を含む): 1123273008

約数和(自身を除く): 484795323

約数列:

[1, 3, 5, 9, 15, 45, 113, 241, 339, 521, 565, 723, 1017, 1205, 1563, 1695, 2169, 2605, 3615, 4689, 5085, 7815, 10845, 23445, 27233, 58873, 81699, 125561, 136165, 176619, 245097, 294365, 376683, 408495, 529857, 627805, 883095, 1130049, 1225485, 1883415, 2649285, 5650245, 14188393, 42565179, 70941965, 127695537, 212825895, 638477685]

約数ペア:

[(1, 638477685), (3, 212825895), (5, 127695537), (9, 70941965), (15, 42565179), (45, 14188393), (113, 5650245), (241, 2649285), (339, 1883415), (521, 1225485), (565, 1130049), (723, 883095), (1017, 627805), (1205, 529857), (1563, 408495), (1695, 376683), (2169, 294365), (2605, 245097), (3615, 176619), (4689, 136165), (5085, 125561), (7815, 81699), (10845, 58873), (23445, 27233)]