11946820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{211}}^1$

素因数の和:388

約数の個数: 48

約数和(自身を含む): 26712000

約数和(自身を除く): 14765180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 149, 190, 211, 298, 380, 422, 596, 745, 844, 1055, 1490, 2110, 2831, 2980, 4009, 4220, 5662, 8018, 11324, 14155, 16036, 20045, 28310, 31439, 40090, 56620, 62878, 80180, 125756, 157195, 314390, 597341, 628780, 1194682, 2389364, 2986705, 5973410, 11946820]

約数ペア:

[(1, 11946820), (2, 5973410), (4, 2986705), (5, 2389364), (10, 1194682), (19, 628780), (20, 597341), (38, 314390), (76, 157195), (95, 125756), (149, 80180), (190, 62878), (211, 56620), (298, 40090), (380, 31439), (422, 28310), (596, 20045), (745, 16036), (844, 14155), (1055, 11324), (1490, 8018), (2110, 5662), (2831, 4220), (2980, 4009)]