31885990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{653}}^1$

素因数の和:936

約数の個数: 32

約数和(自身を含む): 60743520

約数和(自身を除く): 28857530

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 257, 514, 653, 1285, 1306, 2570, 3265, 4883, 6530, 9766, 12407, 24415, 24814, 48830, 62035, 124070, 167821, 335642, 839105, 1678210, 3188599, 6377198, 15942995, 31885990]

約数ペア:

[(1, 31885990), (2, 15942995), (5, 6377198), (10, 3188599), (19, 1678210), (38, 839105), (95, 335642), (190, 167821), (257, 124070), (514, 62035), (653, 48830), (1285, 24814), (1306, 24415), (2570, 12407), (3265, 9766), (4883, 6530)]