20709060

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1$

素因数の和:365

約数の個数: 96

約数和(自身を含む): 62415360

約数和(自身を除く): 41706300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 79, 85, 102, 158, 170, 204, 237, 255, 257, 316, 340, 395, 474, 510, 514, 771, 790, 948, 1020, 1028, 1185, 1285, 1343, 1542, 1580, 2370, 2570, 2686, 3084, 3855, 4029, 4369, 4740, 5140, 5372, 6715, 7710, 8058, 8738, 13107, 13430, 15420, 16116, 17476, 20145, 20303, 21845, 26214, 26860, 40290, 40606, 43690, 52428, 60909, 65535, 80580, 81212, 87380, 101515, 121818, 131070, 203030, 243636, 262140, 304545, 345151, 406060, 609090, 690302, 1035453, 1218180, 1380604, 1725755, 2070906, 3451510, 4141812, 5177265, 6903020, 10354530, 20709060]

約数ペア:

[(1, 20709060), (2, 10354530), (3, 6903020), (4, 5177265), (5, 4141812), (6, 3451510), (10, 2070906), (12, 1725755), (15, 1380604), (17, 1218180), (20, 1035453), (30, 690302), (34, 609090), (51, 406060), (60, 345151), (68, 304545), (79, 262140), (85, 243636), (102, 203030), (158, 131070), (170, 121818), (204, 101515), (237, 87380), (255, 81212), (257, 80580), (316, 65535), (340, 60909), (395, 52428), (474, 43690), (510, 40606), (514, 40290), (771, 26860), (790, 26214), (948, 21845), (1020, 20303), (1028, 20145), (1185, 17476), (1285, 16116), (1343, 15420), (1542, 13430), (1580, 13107), (2370, 8738), (2570, 8058), (2686, 7710), (3084, 6715), (3855, 5372), (4029, 5140), (4369, 4740)]