17760780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1249}}^1$

素因数の和:1343

約数の個数: 72

約数和(自身を含む): 54600000

約数和(自身を除く): 36839220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 79, 90, 158, 180, 237, 316, 395, 474, 711, 790, 948, 1185, 1249, 1422, 1580, 2370, 2498, 2844, 3555, 3747, 4740, 4996, 6245, 7110, 7494, 11241, 12490, 14220, 14988, 18735, 22482, 24980, 37470, 44964, 56205, 74940, 98671, 112410, 197342, 224820, 296013, 394684, 493355, 592026, 888039, 986710, 1184052, 1480065, 1776078, 1973420, 2960130, 3552156, 4440195, 5920260, 8880390, 17760780]

約数ペア:

[(1, 17760780), (2, 8880390), (3, 5920260), (4, 4440195), (5, 3552156), (6, 2960130), (9, 1973420), (10, 1776078), (12, 1480065), (15, 1184052), (18, 986710), (20, 888039), (30, 592026), (36, 493355), (45, 394684), (60, 296013), (79, 224820), (90, 197342), (158, 112410), (180, 98671), (237, 74940), (316, 56205), (395, 44964), (474, 37470), (711, 24980), (790, 22482), (948, 18735), (1185, 14988), (1249, 14220), (1422, 12490), (1580, 11241), (2370, 7494), (2498, 7110), (2844, 6245), (3555, 4996), (3747, 4740)]