206895440

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{1021}}^1$

素因数の和:1200

約数の個数: 80

約数和(自身を含む): 513248400

約数和(自身を除く): 306352960

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 149, 170, 272, 298, 340, 596, 680, 745, 1021, 1192, 1360, 1490, 2042, 2384, 2533, 2980, 4084, 5066, 5105, 5960, 8168, 10132, 10210, 11920, 12665, 16336, 17357, 20264, 20420, 25330, 34714, 40528, 40840, 50660, 69428, 81680, 86785, 101320, 138856, 152129, 173570, 202640, 277712, 304258, 347140, 608516, 694280, 760645, 1217032, 1388560, 1521290, 2434064, 2586193, 3042580, 5172386, 6085160, 10344772, 12170320, 12930965, 20689544, 25861930, 41379088, 51723860, 103447720, 206895440]

約数ペア:

[(1, 206895440), (2, 103447720), (4, 51723860), (5, 41379088), (8, 25861930), (10, 20689544), (16, 12930965), (17, 12170320), (20, 10344772), (34, 6085160), (40, 5172386), (68, 3042580), (80, 2586193), (85, 2434064), (136, 1521290), (149, 1388560), (170, 1217032), (272, 760645), (298, 694280), (340, 608516), (596, 347140), (680, 304258), (745, 277712), (1021, 202640), (1192, 173570), (1360, 152129), (1490, 138856), (2042, 101320), (2384, 86785), (2533, 81680), (2980, 69428), (4084, 50660), (5066, 40840), (5105, 40528), (5960, 34714), (8168, 25330), (10132, 20420), (10210, 20264), (11920, 17357), (12665, 16336)]