63771980

素因数分解:

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

素因数の和:938

約数の個数: 48

約数和(自身を含む): 141734880

約数和(自身を除く): 77962900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 257, 380, 514, 653, 1028, 1285, 1306, 2570, 2612, 3265, 4883, 5140, 6530, 9766, 12407, 13060, 19532, 24415, 24814, 48830, 49628, 62035, 97660, 124070, 167821, 248140, 335642, 671284, 839105, 1678210, 3188599, 3356420, 6377198, 12754396, 15942995, 31885990, 63771980]

約数ペア:

[(1, 63771980), (2, 31885990), (4, 15942995), (5, 12754396), (10, 6377198), (19, 3356420), (20, 3188599), (38, 1678210), (76, 839105), (95, 671284), (190, 335642), (257, 248140), (380, 167821), (514, 124070), (653, 97660), (1028, 62035), (1285, 49628), (1306, 48830), (2570, 24814), (2612, 24415), (3265, 19532), (4883, 13060), (5140, 12407), (6530, 9766)]