20918555640

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{181019}}^1$

素因数の和:181146

約数の個数: 128

約数和(自身を含む): 70380576000

約数和(自身を除く): 49462020360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 107, 108, 120, 135, 180, 214, 216, 270, 321, 360, 428, 535, 540, 642, 856, 963, 1070, 1080, 1284, 1605, 1926, 2140, 2568, 2889, 3210, 3852, 4280, 4815, 5778, 6420, 7704, 9630, 11556, 12840, 14445, 19260, 23112, 28890, 38520, 57780, 115560, 181019, 362038, 543057, 724076, 905095, 1086114, 1448152, 1629171, 1810190, 2172228, 2715285, 3258342, 3620380, 4344456, 4887513, 5430570, 6516684, 7240760, 8145855, 9775026, 10861140, 13033368, 16291710, 19369033, 19550052, 21722280, 24437565, 32583420, 38738066, 39100104, 48875130, 58107099, 65166840, 77476132, 96845165, 97750260, 116214198, 154952264, 174321297, 193690330, 195500520, 232428396, 290535495, 348642594, 387380660, 464856792, 522963891, 581070990, 697285188, 774761320, 871606485, 1045927782, 1162141980, 1394570376, 1743212970, 2091855564, 2324283960, 2614819455, 3486425940, 4183711128, 5229638910, 6972851880, 10459277820, 20918555640]

約数ペア:

[(1, 20918555640), (2, 10459277820), (3, 6972851880), (4, 5229638910), (5, 4183711128), (6, 3486425940), (8, 2614819455), (9, 2324283960), (10, 2091855564), (12, 1743212970), (15, 1394570376), (18, 1162141980), (20, 1045927782), (24, 871606485), (27, 774761320), (30, 697285188), (36, 581070990), (40, 522963891), (45, 464856792), (54, 387380660), (60, 348642594), (72, 290535495), (90, 232428396), (107, 195500520), (108, 193690330), (120, 174321297), (135, 154952264), (180, 116214198), (214, 97750260), (216, 96845165), (270, 77476132), (321, 65166840), (360, 58107099), (428, 48875130), (535, 39100104), (540, 38738066), (642, 32583420), (856, 24437565), (963, 21722280), (1070, 19550052), (1080, 19369033), (1284, 16291710), (1605, 13033368), (1926, 10861140), (2140, 9775026), (2568, 8145855), (2889, 7240760), (3210, 6516684), (3852, 5430570), (4280, 4887513), (4815, 4344456), (5778, 3620380), (6420, 3258342), (7704, 2715285), (9630, 2172228), (11556, 1810190), (12840, 1629171), (14445, 1448152), (19260, 1086114), (23112, 905095), (28890, 724076), (38520, 543057), (57780, 362038), (115560, 181019)]