2009764520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{71471}}^1$

素因数の和:71538

約数の個数: 64

約数和(自身を含む): 4888684800

約数和(自身を除く): 2878920280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 37, 38, 40, 74, 76, 95, 148, 152, 185, 190, 296, 370, 380, 703, 740, 760, 1406, 1480, 2812, 3515, 5624, 7030, 14060, 28120, 71471, 142942, 285884, 357355, 571768, 714710, 1357949, 1429420, 2644427, 2715898, 2858840, 5288854, 5431796, 6789745, 10577708, 10863592, 13222135, 13579490, 21155416, 26444270, 27158980, 50244113, 52888540, 54317960, 100488226, 105777080, 200976452, 251220565, 401952904, 502441130, 1004882260, 2009764520]

約数ペア:

[(1, 2009764520), (2, 1004882260), (4, 502441130), (5, 401952904), (8, 251220565), (10, 200976452), (19, 105777080), (20, 100488226), (37, 54317960), (38, 52888540), (40, 50244113), (74, 27158980), (76, 26444270), (95, 21155416), (148, 13579490), (152, 13222135), (185, 10863592), (190, 10577708), (296, 6789745), (370, 5431796), (380, 5288854), (703, 2858840), (740, 2715898), (760, 2644427), (1406, 1429420), (1480, 1357949), (2812, 714710), (3515, 571768), (5624, 357355), (7030, 285884), (14060, 142942), (28120, 71471)]