989142025

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2153}}^1$

素因数の和:2250

約数の個数: 48

約数和(自身を含む): 1384625664

約数和(自身を除く): 395483639

約数列:

[1, 5, 17, 23, 25, 47, 85, 115, 235, 391, 425, 575, 799, 1081, 1175, 1955, 2153, 3995, 5405, 9775, 10765, 18377, 19975, 27025, 36601, 49519, 53825, 91885, 101191, 183005, 247595, 459425, 505955, 841823, 915025, 1237975, 1720247, 2327393, 2529775, 4209115, 8601235, 11636965, 21045575, 39565681, 43006175, 58184825, 197828405, 989142025]

約数ペア:

[(1, 989142025), (5, 197828405), (17, 58184825), (23, 43006175), (25, 39565681), (47, 21045575), (85, 11636965), (115, 8601235), (235, 4209115), (391, 2529775), (425, 2327393), (575, 1720247), (799, 1237975), (1081, 915025), (1175, 841823), (1955, 505955), (2153, 459425), (3995, 247595), (5405, 183005), (9775, 101191), (10765, 91885), (18377, 53825), (19975, 49519), (27025, 36601)]