210008720

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{691}}^1$

素因数の和:864

約数の個数: 80

約数和(自身を含む): 509699520

約数和(自身を除く): 299690800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 131, 145, 232, 262, 290, 464, 524, 580, 655, 691, 1048, 1160, 1310, 1382, 2096, 2320, 2620, 2764, 3455, 3799, 5240, 5528, 6910, 7598, 10480, 11056, 13820, 15196, 18995, 20039, 27640, 30392, 37990, 40078, 55280, 60784, 75980, 80156, 90521, 100195, 151960, 160312, 181042, 200390, 303920, 320624, 362084, 400780, 452605, 724168, 801560, 905210, 1448336, 1603120, 1810420, 2625109, 3620840, 5250218, 7241680, 10500436, 13125545, 21000872, 26251090, 42001744, 52502180, 105004360, 210008720]

約数ペア:

[(1, 210008720), (2, 105004360), (4, 52502180), (5, 42001744), (8, 26251090), (10, 21000872), (16, 13125545), (20, 10500436), (29, 7241680), (40, 5250218), (58, 3620840), (80, 2625109), (116, 1810420), (131, 1603120), (145, 1448336), (232, 905210), (262, 801560), (290, 724168), (464, 452605), (524, 400780), (580, 362084), (655, 320624), (691, 303920), (1048, 200390), (1160, 181042), (1310, 160312), (1382, 151960), (2096, 100195), (2320, 90521), (2620, 80156), (2764, 75980), (3455, 60784), (3799, 55280), (5240, 40078), (5528, 37990), (6910, 30392), (7598, 27640), (10480, 20039), (11056, 18995), (13820, 15196)]