3878940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4973}}^1$

素因数の和:4998

約数の個数: 48

約数和(自身を含む): 11698848

約数和(自身を除く): 7819908

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 4973, 9946, 14919, 19892, 24865, 29838, 49730, 59676, 64649, 74595, 99460, 129298, 149190, 193947, 258596, 298380, 323245, 387894, 646490, 775788, 969735, 1292980, 1939470, 3878940]

約数ペア:

[(1, 3878940), (2, 1939470), (3, 1292980), (4, 969735), (5, 775788), (6, 646490), (10, 387894), (12, 323245), (13, 298380), (15, 258596), (20, 193947), (26, 149190), (30, 129298), (39, 99460), (52, 74595), (60, 64649), (65, 59676), (78, 49730), (130, 29838), (156, 24865), (195, 19892), (260, 14919), (390, 9946), (780, 4973)]