19814760

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{2621}}^1$

素因数の和:2648

約数の個数: 128

約数和(自身を含む): 75513600

約数和(自身を除く): 55698840

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, 2621, 3780, 5242, 7560, 7863, 10484, 13105, 15726, 18347, 20968, 23589, 26210, 31452, 36694, 39315, 47178, 52420, 55041, 62904, 70767, 73388, 78630, 91735, 94356, 104840, 110082, 117945, 141534, 146776, 157260, 165123, 183470, 188712, 220164, 235890, 275205, 283068, 314520, 330246, 353835, 366940, 440328, 471780, 495369, 550410, 566136, 660492, 707670, 733880, 825615, 943560, 990738, 1100820, 1320984, 1415340, 1651230, 1981476, 2201640, 2476845, 2830680, 3302460, 3962952, 4953690, 6604920, 9907380, 19814760]

約数ペア:

[(1, 19814760), (2, 9907380), (3, 6604920), (4, 4953690), (5, 3962952), (6, 3302460), (7, 2830680), (8, 2476845), (9, 2201640), (10, 1981476), (12, 1651230), (14, 1415340), (15, 1320984), (18, 1100820), (20, 990738), (21, 943560), (24, 825615), (27, 733880), (28, 707670), (30, 660492), (35, 566136), (36, 550410), (40, 495369), (42, 471780), (45, 440328), (54, 366940), (56, 353835), (60, 330246), (63, 314520), (70, 283068), (72, 275205), (84, 235890), (90, 220164), (105, 188712), (108, 183470), (120, 165123), (126, 157260), (135, 146776), (140, 141534), (168, 117945), (180, 110082), (189, 104840), (210, 94356), (216, 91735), (252, 78630), (270, 73388), (280, 70767), (315, 62904), (360, 55041), (378, 52420), (420, 47178), (504, 39315), (540, 36694), (630, 31452), (756, 26210), (840, 23589), (945, 20968), (1080, 18347), (1260, 15726), (1512, 13105), (1890, 10484), (2520, 7863), (2621, 7560), (3780, 5242)]