216809.00000000

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:317

約数の個数: 96

約数和(自身を含む): 63504000

約数和(自身を除く): 42378780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 139, 149, 170, 204, 255, 278, 298, 340, 417, 447, 510, 556, 596, 695, 745, 834, 894, 1020, 1390, 1490, 1668, 1788, 2085, 2235, 2363, 2533, 2780, 2980, 4170, 4470, 4726, 5066, 7089, 7599, 8340, 8940, 9452, 10132, 11815, 12665, 14178, 15198, 20711, 23630, 25330, 28356, 30396, 35445, 37995, 41422, 47260, 50660, 62133, 70890, 75990, 82844, 103555, 124266, 141780, 151980, 207110, 248532, 310665, 352087, 414220, 621330, 704174, 1056261, 1242660, 1408348, 1760435, 2112522, 3520870, 4225044, 5281305, 7041740, 10562610, 21125220]

約数ペア:

[(1, 21125220), (2, 10562610), (3, 7041740), (4, 5281305), (5, 4225044), (6, 3520870), (10, 2112522), (12, 1760435), (15, 1408348), (17, 1242660), (20, 1056261), (30, 704174), (34, 621330), (51, 414220), (60, 352087), (68, 310665), (85, 248532), (102, 207110), (139, 151980), (149, 141780), (170, 124266), (204, 103555), (255, 82844), (278, 75990), (298, 70890), (340, 62133), (417, 50660), (447, 47260), (510, 41422), (556, 37995), (596, 35445), (695, 30396), (745, 28356), (834, 25330), (894, 23630), (1020, 20711), (1390, 15198), (1490, 14178), (1668, 12665), (1788, 11815), (2085, 10132), (2235, 9452), (2363, 8940), (2533, 8340), (2780, 7599), (2980, 7089), (4170, 5066), (4470, 4726)]