68881140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1489}}^1$

素因数の和:1761

約数の個数: 72

約数和(自身を含む): 209893320

約数和(自身を除く): 141012180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 257, 514, 771, 1028, 1285, 1489, 1542, 2313, 2570, 2978, 3084, 3855, 4467, 4626, 5140, 5956, 7445, 7710, 8934, 9252, 11565, 13401, 14890, 15420, 17868, 22335, 23130, 26802, 29780, 44670, 46260, 53604, 67005, 89340, 134010, 268020, 382673, 765346, 1148019, 1530692, 1913365, 2296038, 3444057, 3826730, 4592076, 5740095, 6888114, 7653460, 11480190, 13776228, 17220285, 22960380, 34440570, 68881140]

約数ペア:

[(1, 68881140), (2, 34440570), (3, 22960380), (4, 17220285), (5, 13776228), (6, 11480190), (9, 7653460), (10, 6888114), (12, 5740095), (15, 4592076), (18, 3826730), (20, 3444057), (30, 2296038), (36, 1913365), (45, 1530692), (60, 1148019), (90, 765346), (180, 382673), (257, 268020), (514, 134010), (771, 89340), (1028, 67005), (1285, 53604), (1489, 46260), (1542, 44670), (2313, 29780), (2570, 26802), (2978, 23130), (3084, 22335), (3855, 17868), (4467, 15420), (4626, 14890), (5140, 13401), (5956, 11565), (7445, 9252), (7710, 8934)]