About the Number

210990420

210990419 ← → 210990421

2進数表記:1100100100110111010101010100

漢数字表記:二億千九十九万四百二十

素因数分解:

2 2 × 3 4 × 5 1 × 130241 1

素因数の和:130262
約数の個数: 60
約数和(自身を含む): 661889844
約数和(自身を除く): 450899424

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, 130241, 260482, 390723, 520964, 651205, 781446, 1172169, 1302410, 1562892, 1953615, 2344338, 2604820, 3516507, 3907230, 4688676, 5860845, 7033014, 7814460, 10549521, 11721690, 14066028, 17582535, 21099042, 23443380, 35165070, 42198084, 52747605, 70330140, 105495210, 210990420]

約数ペア:
[(1, 210990420), (2, 105495210), (3, 70330140), (4, 52747605), (5, 42198084), (6, 35165070), (9, 23443380), (10, 21099042), (12, 17582535), (15, 14066028), (18, 11721690), (20, 10549521), (27, 7814460), (30, 7033014), (36, 5860845), (45, 4688676), (54, 3907230), (60, 3516507), (81, 2604820), (90, 2344338), (108, 1953615), (135, 1562892), (162, 1302410), (180, 1172169), (270, 781446), (324, 651205), (405, 520964), (540, 390723), (810, 260482), (1620, 130241)]

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