978240340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{661}}^1$

素因数の和:750

約数の個数: 144

約数和(自身を含む): 2650499712

約数和(自身を除く): 1672259372

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 31, 35, 44, 55, 62, 70, 77, 110, 124, 140, 154, 155, 217, 220, 308, 310, 341, 385, 434, 620, 661, 682, 770, 868, 961, 1085, 1322, 1364, 1540, 1705, 1922, 2170, 2387, 2644, 3305, 3410, 3844, 4340, 4627, 4774, 4805, 6610, 6727, 6820, 7271, 9254, 9548, 9610, 10571, 11935, 13220, 13454, 14542, 18508, 19220, 20491, 21142, 23135, 23870, 26908, 29084, 33635, 36355, 40982, 42284, 46270, 47740, 50897, 52855, 67270, 72710, 73997, 81964, 92540, 101794, 102455, 105710, 134540, 143437, 145420, 147994, 203588, 204910, 211420, 225401, 254485, 286874, 295988, 369985, 409820, 450802, 508970, 573748, 635221, 717185, 739970, 901604, 1017940, 1127005, 1270442, 1434370, 1479940, 1577807, 2254010, 2540884, 2868740, 3155614, 3176105, 4446547, 4508020, 6311228, 6352210, 6987431, 7889035, 8893094, 12704420, 13974862, 15778070, 17786188, 22232735, 27949724, 31556140, 34937155, 44465470, 48912017, 69874310, 88930940, 97824034, 139748620, 195648068, 244560085, 489120170, 978240340]

約数ペア:

[(1, 978240340), (2, 489120170), (4, 244560085), (5, 195648068), (7, 139748620), (10, 97824034), (11, 88930940), (14, 69874310), (20, 48912017), (22, 44465470), (28, 34937155), (31, 31556140), (35, 27949724), (44, 22232735), (55, 17786188), (62, 15778070), (70, 13974862), (77, 12704420), (110, 8893094), (124, 7889035), (140, 6987431), (154, 6352210), (155, 6311228), (217, 4508020), (220, 4446547), (308, 3176105), (310, 3155614), (341, 2868740), (385, 2540884), (434, 2254010), (620, 1577807), (661, 1479940), (682, 1434370), (770, 1270442), (868, 1127005), (961, 1017940), (1085, 901604), (1322, 739970), (1364, 717185), (1540, 635221), (1705, 573748), (1922, 508970), (2170, 450802), (2387, 409820), (2644, 369985), (3305, 295988), (3410, 286874), (3844, 254485), (4340, 225401), (4627, 211420), (4774, 204910), (4805, 203588), (6610, 147994), (6727, 145420), (6820, 143437), (7271, 134540), (9254, 105710), (9548, 102455), (9610, 101794), (10571, 92540), (11935, 81964), (13220, 73997), (13454, 72710), (14542, 67270), (18508, 52855), (19220, 50897), (20491, 47740), (21142, 46270), (23135, 42284), (23870, 40982), (26908, 36355), (29084, 33635)]