About the Number

400128930

400128929 ← → 400128931

2進数表記:10111110110010111101110100010

漢数字表記:四億十二万八千九百三十

素因数分解:

2 1 × 3 3 × 5 1 × 23 1 × 64433 1

素因数の和:64472
約数の個数: 64
約数和(自身を含む): 1113419520
約数和(自身を除く): 713290590

約数列:
[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 27, 30, 45, 46, 54, 69, 90, 115, 135, 138, 207, 230, 270, 345, 414, 621, 690, 1035, 1242, 2070, 3105, 6210, 64433, 128866, 193299, 322165, 386598, 579897, 644330, 966495, 1159794, 1481959, 1739691, 1932990, 2899485, 2963918, 3479382, 4445877, 5798970, 7409795, 8698455, 8891754, 13337631, 14819590, 17396910, 22229385, 26675262, 40012893, 44458770, 66688155, 80025786, 133376310, 200064465, 400128930]

約数ペア:
[(1, 400128930), (2, 200064465), (3, 133376310), (5, 80025786), (6, 66688155), (9, 44458770), (10, 40012893), (15, 26675262), (18, 22229385), (23, 17396910), (27, 14819590), (30, 13337631), (45, 8891754), (46, 8698455), (54, 7409795), (69, 5798970), (90, 4445877), (115, 3479382), (135, 2963918), (138, 2899485), (207, 1932990), (230, 1739691), (270, 1481959), (345, 1159794), (414, 966495), (621, 644330), (690, 579897), (1035, 386598), (1242, 322165), (2070, 193299), (3105, 128866), (6210, 64433)]

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