81065880

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{10723}}^1$

素因数の和:10750

約数の個数: 128

約数和(自身を含む): 308851200

約数和(自身を除く): 227785320

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, 10723, 21446, 32169, 42892, 53615, 64338, 75061, 85784, 96507, 107230, 128676, 150122, 160845, 193014, 214460, 225183, 257352, 289521, 300244, 321690, 375305, 386028, 428920, 450366, 482535, 579042, 600488, 643380, 675549, 750610, 772056, 900732, 965070, 1125915, 1158084, 1286760, 1351098, 1447605, 1501220, 1801464, 1930140, 2026647, 2251830, 2316168, 2702196, 2895210, 3002440, 3377745, 3860280, 4053294, 4503660, 5404392, 5790420, 6755490, 8106588, 9007320, 10133235, 11580840, 13510980, 16213176, 20266470, 27021960, 40532940, 81065880]

約数ペア:

[(1, 81065880), (2, 40532940), (3, 27021960), (4, 20266470), (5, 16213176), (6, 13510980), (7, 11580840), (8, 10133235), (9, 9007320), (10, 8106588), (12, 6755490), (14, 5790420), (15, 5404392), (18, 4503660), (20, 4053294), (21, 3860280), (24, 3377745), (27, 3002440), (28, 2895210), (30, 2702196), (35, 2316168), (36, 2251830), (40, 2026647), (42, 1930140), (45, 1801464), (54, 1501220), (56, 1447605), (60, 1351098), (63, 1286760), (70, 1158084), (72, 1125915), (84, 965070), (90, 900732), (105, 772056), (108, 750610), (120, 675549), (126, 643380), (135, 600488), (140, 579042), (168, 482535), (180, 450366), (189, 428920), (210, 386028), (216, 375305), (252, 321690), (270, 300244), (280, 289521), (315, 257352), (360, 225183), (378, 214460), (420, 193014), (504, 160845), (540, 150122), (630, 128676), (756, 107230), (840, 96507), (945, 85784), (1080, 75061), (1260, 64338), (1512, 53615), (1890, 42892), (2520, 32169), (3780, 21446), (7560, 10723)]