81840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1$

素因数の和:58

約数の個数: 80

約数和(自身を含む): 285696

約数和(自身を除く): 203856

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 31, 33, 40, 44, 48, 55, 60, 62, 66, 80, 88, 93, 110, 120, 124, 132, 155, 165, 176, 186, 220, 240, 248, 264, 310, 330, 341, 372, 440, 465, 496, 528, 620, 660, 682, 744, 880, 930, 1023, 1240, 1320, 1364, 1488, 1705, 1860, 2046, 2480, 2640, 2728, 3410, 3720, 4092, 5115, 5456, 6820, 7440, 8184, 10230, 13640, 16368, 20460, 27280, 40920, 81840]

約数ペア:

[(1, 81840), (2, 40920), (3, 27280), (4, 20460), (5, 16368), (6, 13640), (8, 10230), (10, 8184), (11, 7440), (12, 6820), (15, 5456), (16, 5115), (20, 4092), (22, 3720), (24, 3410), (30, 2728), (31, 2640), (33, 2480), (40, 2046), (44, 1860), (48, 1705), (55, 1488), (60, 1364), (62, 1320), (66, 1240), (80, 1023), (88, 930), (93, 880), (110, 744), (120, 682), (124, 660), (132, 620), (155, 528), (165, 496), (176, 465), (186, 440), (220, 372), (240, 341), (248, 330), (264, 310)]