20028115905

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{361943}}^1$

素因数の和:362006

約数の個数: 64

約数和(自身を含む): 40028110848

約数和(自身を除く): 19999994943

約数列:

[1, 3, 5, 7, 15, 17, 21, 31, 35, 51, 85, 93, 105, 119, 155, 217, 255, 357, 465, 527, 595, 651, 1085, 1581, 1785, 2635, 3255, 3689, 7905, 11067, 18445, 55335, 361943, 1085829, 1809715, 2533601, 5429145, 6153031, 7600803, 11220233, 12668005, 18459093, 30765155, 33660699, 38004015, 43071217, 56101165, 78541631, 92295465, 129213651, 168303495, 190743961, 215356085, 235624893, 392708155, 572231883, 646068255, 953719805, 1178124465, 1335207727, 2861159415, 4005623181, 6676038635, 20028115905]

約数ペア:

[(1, 20028115905), (3, 6676038635), (5, 4005623181), (7, 2861159415), (15, 1335207727), (17, 1178124465), (21, 953719805), (31, 646068255), (35, 572231883), (51, 392708155), (85, 235624893), (93, 215356085), (105, 190743961), (119, 168303495), (155, 129213651), (217, 92295465), (255, 78541631), (357, 56101165), (465, 43071217), (527, 38004015), (595, 33660699), (651, 30765155), (1085, 18459093), (1581, 12668005), (1785, 11220233), (2635, 7600803), (3255, 6153031), (3689, 5429145), (7905, 2533601), (11067, 1809715), (18445, 1085829), (55335, 361943)]