1971292680

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{260753}}^1$

素因数の和:260780

約数の個数: 128

約数和(自身を含む): 7509715200

約数和(自身を除く): 5538422520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 3780, 7560, 260753, 521506, 782259, 1043012, 1303765, 1564518, 1825271, 2086024, 2346777, 2607530, 3129036, 3650542, 3911295, 4693554, 5215060, 5475813, 6258072, 7040331, 7301084, 7822590, 9126355, 9387108, 10430120, 10951626, 11733885, 14080662, 14602168, 15645180, 16427439, 18252710, 18774216, 21903252, 23467770, 27379065, 28161324, 31290360, 32854878, 35201655, 36505420, 43806504, 46935540, 49282317, 54758130, 56322648, 65709756, 70403310, 73010840, 82137195, 93871080, 98564634, 109516260, 131419512, 140806620, 164274390, 197129268, 219032520, 246411585, 281613240, 328548780, 394258536, 492823170, 657097560, 985646340, 1971292680]

約数ペア:

[(1, 1971292680), (2, 985646340), (3, 657097560), (4, 492823170), (5, 394258536), (6, 328548780), (7, 281613240), (8, 246411585), (9, 219032520), (10, 197129268), (12, 164274390), (14, 140806620), (15, 131419512), (18, 109516260), (20, 98564634), (21, 93871080), (24, 82137195), (27, 73010840), (28, 70403310), (30, 65709756), (35, 56322648), (36, 54758130), (40, 49282317), (42, 46935540), (45, 43806504), (54, 36505420), (56, 35201655), (60, 32854878), (63, 31290360), (70, 28161324), (72, 27379065), (84, 23467770), (90, 21903252), (105, 18774216), (108, 18252710), (120, 16427439), (126, 15645180), (135, 14602168), (140, 14080662), (168, 11733885), (180, 10951626), (189, 10430120), (210, 9387108), (216, 9126355), (252, 7822590), (270, 7301084), (280, 7040331), (315, 6258072), (360, 5475813), (378, 5215060), (420, 4693554), (504, 3911295), (540, 3650542), (630, 3129036), (756, 2607530), (840, 2346777), (945, 2086024), (1080, 1825271), (1260, 1564518), (1512, 1303765), (1890, 1043012), (2520, 782259), (3780, 521506), (7560, 260753)]