20834010

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{89}}^1$

素因数の和:142

約数の個数: 120

約数和(自身を含む): 60178140

約数和(自身を除く): 39344130

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 27, 30, 34, 45, 51, 54, 81, 85, 89, 90, 102, 135, 153, 162, 170, 178, 255, 267, 270, 289, 306, 405, 445, 459, 510, 534, 578, 765, 801, 810, 867, 890, 918, 1335, 1377, 1445, 1513, 1530, 1602, 1734, 2295, 2403, 2601, 2670, 2754, 2890, 3026, 4005, 4335, 4539, 4590, 4806, 5202, 6885, 7209, 7565, 7803, 8010, 8670, 9078, 12015, 13005, 13617, 13770, 14418, 15130, 15606, 22695, 23409, 24030, 25721, 26010, 27234, 36045, 39015, 40851, 45390, 46818, 51442, 68085, 72090, 77163, 78030, 81702, 117045, 122553, 128605, 136170, 154326, 204255, 231489, 234090, 245106, 257210, 385815, 408510, 462978, 612765, 694467, 771630, 1157445, 1225530, 1388934, 2083401, 2314890, 3472335, 4166802, 6944670, 10417005, 20834010]

約数ペア:

[(1, 20834010), (2, 10417005), (3, 6944670), (5, 4166802), (6, 3472335), (9, 2314890), (10, 2083401), (15, 1388934), (17, 1225530), (18, 1157445), (27, 771630), (30, 694467), (34, 612765), (45, 462978), (51, 408510), (54, 385815), (81, 257210), (85, 245106), (89, 234090), (90, 231489), (102, 204255), (135, 154326), (153, 136170), (162, 128605), (170, 122553), (178, 117045), (255, 81702), (267, 78030), (270, 77163), (289, 72090), (306, 68085), (405, 51442), (445, 46818), (459, 45390), (510, 40851), (534, 39015), (578, 36045), (765, 27234), (801, 26010), (810, 25721), (867, 24030), (890, 23409), (918, 22695), (1335, 15606), (1377, 15130), (1445, 14418), (1513, 13770), (1530, 13617), (1602, 13005), (1734, 12015), (2295, 9078), (2403, 8670), (2601, 8010), (2670, 7803), (2754, 7565), (2890, 7209), (3026, 6885), (4005, 5202), (4335, 4806), (4539, 4590)]