19701810

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:272

約数の個数: 96

約数和(自身を含む): 55261440

約数和(自身を除く): 35559630

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 45, 51, 79, 85, 90, 102, 153, 158, 163, 170, 237, 255, 306, 326, 395, 474, 489, 510, 711, 765, 790, 815, 978, 1185, 1343, 1422, 1467, 1530, 1630, 2370, 2445, 2686, 2771, 2934, 3555, 4029, 4890, 5542, 6715, 7110, 7335, 8058, 8313, 12087, 12877, 13430, 13855, 14670, 16626, 20145, 24174, 24939, 25754, 27710, 38631, 40290, 41565, 49878, 60435, 64385, 77262, 83130, 115893, 120870, 124695, 128770, 193155, 218909, 231786, 249390, 386310, 437818, 579465, 656727, 1094545, 1158930, 1313454, 1970181, 2189090, 3283635, 3940362, 6567270, 9850905, 19701810]

約数ペア:

[(1, 19701810), (2, 9850905), (3, 6567270), (5, 3940362), (6, 3283635), (9, 2189090), (10, 1970181), (15, 1313454), (17, 1158930), (18, 1094545), (30, 656727), (34, 579465), (45, 437818), (51, 386310), (79, 249390), (85, 231786), (90, 218909), (102, 193155), (153, 128770), (158, 124695), (163, 120870), (170, 115893), (237, 83130), (255, 77262), (306, 64385), (326, 60435), (395, 49878), (474, 41565), (489, 40290), (510, 38631), (711, 27710), (765, 25754), (790, 24939), (815, 24174), (978, 20145), (1185, 16626), (1343, 14670), (1422, 13855), (1467, 13430), (1530, 12877), (1630, 12087), (2370, 8313), (2445, 8058), (2686, 7335), (2771, 7110), (2934, 6715), (3555, 5542), (4029, 4890)]