About the Number

23121990

23121989 ← → 23121991

2進数表記:1011000001101000001000110

漢数字表記:二千三百十二万千九百九十

素因数分解:

2 1 × 3 3 × 5 1 × 29 1 × 2953 1

素因数の和:2998
約数の個数: 64
約数和(自身を含む): 63806400
約数和(自身を除く): 40684410

約数列:
[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 29, 30, 45, 54, 58, 87, 90, 135, 145, 174, 261, 270, 290, 435, 522, 783, 870, 1305, 1566, 2610, 2953, 3915, 5906, 7830, 8859, 14765, 17718, 26577, 29530, 44295, 53154, 79731, 85637, 88590, 132885, 159462, 171274, 256911, 265770, 398655, 428185, 513822, 770733, 797310, 856370, 1284555, 1541466, 2312199, 2569110, 3853665, 4624398, 7707330, 11560995, 23121990]

約数ペア:
[(1, 23121990), (2, 11560995), (3, 7707330), (5, 4624398), (6, 3853665), (9, 2569110), (10, 2312199), (15, 1541466), (18, 1284555), (27, 856370), (29, 797310), (30, 770733), (45, 513822), (54, 428185), (58, 398655), (87, 265770), (90, 256911), (135, 171274), (145, 159462), (174, 132885), (261, 88590), (270, 85637), (290, 79731), (435, 53154), (522, 44295), (783, 29530), (870, 26577), (1305, 17718), (1566, 14765), (2610, 8859), (2953, 7830), (3915, 5906)]

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