81761880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{709}}^1$

素因数の和:785

約数の個数: 96

約数和(自身を含む): 253810800

約数和(自身を除く): 172048920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 155, 186, 248, 310, 372, 465, 620, 709, 744, 930, 961, 1240, 1418, 1860, 1922, 2127, 2836, 2883, 3545, 3720, 3844, 4254, 4805, 5672, 5766, 7090, 7688, 8508, 9610, 10635, 11532, 14180, 14415, 17016, 19220, 21270, 21979, 23064, 28360, 28830, 38440, 42540, 43958, 57660, 65937, 85080, 87916, 109895, 115320, 131874, 175832, 219790, 263748, 329685, 439580, 527496, 659370, 681349, 879160, 1318740, 1362698, 2044047, 2637480, 2725396, 3406745, 4088094, 5450792, 6813490, 8176188, 10220235, 13626980, 16352376, 20440470, 27253960, 40880940, 81761880]

約数ペア:

[(1, 81761880), (2, 40880940), (3, 27253960), (4, 20440470), (5, 16352376), (6, 13626980), (8, 10220235), (10, 8176188), (12, 6813490), (15, 5450792), (20, 4088094), (24, 3406745), (30, 2725396), (31, 2637480), (40, 2044047), (60, 1362698), (62, 1318740), (93, 879160), (120, 681349), (124, 659370), (155, 527496), (186, 439580), (248, 329685), (310, 263748), (372, 219790), (465, 175832), (620, 131874), (709, 115320), (744, 109895), (930, 87916), (961, 85080), (1240, 65937), (1418, 57660), (1860, 43958), (1922, 42540), (2127, 38440), (2836, 28830), (2883, 28360), (3545, 23064), (3720, 21979), (3844, 21270), (4254, 19220), (4805, 17016), (5672, 14415), (5766, 14180), (7090, 11532), (7688, 10635), (8508, 9610)]