11971980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{227}}^1\times {\mathrm{293}}^1$

素因数の和:535

約数の個数: 72

約数和(自身を含む): 36599472

約数和(自身を除く): 24627492

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 227, 293, 454, 586, 681, 879, 908, 1135, 1172, 1362, 1465, 1758, 2043, 2270, 2637, 2724, 2930, 3405, 3516, 4086, 4395, 4540, 5274, 5860, 6810, 8172, 8790, 10215, 10548, 13185, 13620, 17580, 20430, 26370, 40860, 52740, 66511, 133022, 199533, 266044, 332555, 399066, 598599, 665110, 798132, 997665, 1197198, 1330220, 1995330, 2394396, 2992995, 3990660, 5985990, 11971980]

約数ペア:

[(1, 11971980), (2, 5985990), (3, 3990660), (4, 2992995), (5, 2394396), (6, 1995330), (9, 1330220), (10, 1197198), (12, 997665), (15, 798132), (18, 665110), (20, 598599), (30, 399066), (36, 332555), (45, 266044), (60, 199533), (90, 133022), (180, 66511), (227, 52740), (293, 40860), (454, 26370), (586, 20430), (681, 17580), (879, 13620), (908, 13185), (1135, 10548), (1172, 10215), (1362, 8790), (1465, 8172), (1758, 6810), (2043, 5860), (2270, 5274), (2637, 4540), (2724, 4395), (2930, 4086), (3405, 3516)]