25399980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{15679}}^1$

素因数の和:15700

約数の個数: 60

約数和(自身を含む): 79685760

約数和(自身を除く): 54285780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 15679, 31358, 47037, 62716, 78395, 94074, 141111, 156790, 188148, 235185, 282222, 313580, 423333, 470370, 564444, 705555, 846666, 940740, 1269999, 1411110, 1693332, 2116665, 2539998, 2822220, 4233330, 5079996, 6349995, 8466660, 12699990, 25399980]

約数ペア:

[(1, 25399980), (2, 12699990), (3, 8466660), (4, 6349995), (5, 5079996), (6, 4233330), (9, 2822220), (10, 2539998), (12, 2116665), (15, 1693332), (18, 1411110), (20, 1269999), (27, 940740), (30, 846666), (36, 705555), (45, 564444), (54, 470370), (60, 423333), (81, 313580), (90, 282222), (108, 235185), (135, 188148), (162, 156790), (180, 141111), (270, 94074), (324, 78395), (405, 62716), (540, 47037), (810, 31358), (1620, 15679)]