31549788

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{229}}^1$

素因数の和:371

約数の個数: 72

約数和(自身を含む): 82882800

約数和(自身を除く): 51333012

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 89, 129, 172, 178, 229, 258, 267, 356, 387, 458, 516, 534, 687, 774, 801, 916, 1068, 1374, 1548, 1602, 2061, 2748, 3204, 3827, 4122, 7654, 8244, 9847, 11481, 15308, 19694, 20381, 22962, 29541, 34443, 39388, 40762, 45924, 59082, 61143, 68886, 81524, 88623, 118164, 122286, 137772, 177246, 183429, 244572, 354492, 366858, 733716, 876383, 1752766, 2629149, 3505532, 5258298, 7887447, 10516596, 15774894, 31549788]

約数ペア:

[(1, 31549788), (2, 15774894), (3, 10516596), (4, 7887447), (6, 5258298), (9, 3505532), (12, 2629149), (18, 1752766), (36, 876383), (43, 733716), (86, 366858), (89, 354492), (129, 244572), (172, 183429), (178, 177246), (229, 137772), (258, 122286), (267, 118164), (356, 88623), (387, 81524), (458, 68886), (516, 61143), (534, 59082), (687, 45924), (774, 40762), (801, 39388), (916, 34443), (1068, 29541), (1374, 22962), (1548, 20381), (1602, 19694), (2061, 15308), (2748, 11481), (3204, 9847), (3827, 8244), (4122, 7654)]