1256940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{6983}}^1$

素因数の和:6998

約数の個数: 36

約数和(自身を含む): 3813264

約数和(自身を除く): 2556324

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 6983, 13966, 20949, 27932, 34915, 41898, 62847, 69830, 83796, 104745, 125694, 139660, 209490, 251388, 314235, 418980, 628470, 1256940]

約数ペア:

[(1, 1256940), (2, 628470), (3, 418980), (4, 314235), (5, 251388), (6, 209490), (9, 139660), (10, 125694), (12, 104745), (15, 83796), (18, 69830), (20, 62847), (30, 41898), (36, 34915), (45, 27932), (60, 20949), (90, 13966), (180, 6983)]