81392040

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{25121}}^1$

素因数の和:25144

約数の個数: 80

約数和(自身を含む): 273578580

約数和(自身を除く): 192186540

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 405, 540, 648, 810, 1080, 1620, 3240, 25121, 50242, 75363, 100484, 125605, 150726, 200968, 226089, 251210, 301452, 376815, 452178, 502420, 602904, 678267, 753630, 904356, 1004840, 1130445, 1356534, 1507260, 1808712, 2034801, 2260890, 2713068, 3014520, 3391335, 4069602, 4521780, 5426136, 6782670, 8139204, 9043560, 10174005, 13565340, 16278408, 20348010, 27130680, 40696020, 81392040]

約数ペア:

[(1, 81392040), (2, 40696020), (3, 27130680), (4, 20348010), (5, 16278408), (6, 13565340), (8, 10174005), (9, 9043560), (10, 8139204), (12, 6782670), (15, 5426136), (18, 4521780), (20, 4069602), (24, 3391335), (27, 3014520), (30, 2713068), (36, 2260890), (40, 2034801), (45, 1808712), (54, 1507260), (60, 1356534), (72, 1130445), (81, 1004840), (90, 904356), (108, 753630), (120, 678267), (135, 602904), (162, 502420), (180, 452178), (216, 376815), (270, 301452), (324, 251210), (360, 226089), (405, 200968), (540, 150726), (648, 125605), (810, 100484), (1080, 75363), (1620, 50242), (3240, 25121)]