18757980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{11579}}^1$

素因数の和:11600

約数の個数: 60

約数和(自身を含む): 58849560

約数和(自身を除く): 40091580

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, 11579, 23158, 34737, 46316, 57895, 69474, 104211, 115790, 138948, 173685, 208422, 231580, 312633, 347370, 416844, 521055, 625266, 694740, 937899, 1042110, 1250532, 1563165, 1875798, 2084220, 3126330, 3751596, 4689495, 6252660, 9378990, 18757980]

約数ペア:

[(1, 18757980), (2, 9378990), (3, 6252660), (4, 4689495), (5, 3751596), (6, 3126330), (9, 2084220), (10, 1875798), (12, 1563165), (15, 1250532), (18, 1042110), (20, 937899), (27, 694740), (30, 625266), (36, 521055), (45, 416844), (54, 347370), (60, 312633), (81, 231580), (90, 208422), (108, 173685), (135, 138948), (162, 115790), (180, 104211), (270, 69474), (324, 57895), (405, 46316), (540, 34737), (810, 23158), (1620, 11579)]