About the Number

1237200020

1237200019 ← → 1237200021

2進数表記:1001001101111100010110010010100

漢数字表記:十二億三千七百二十万二十

素因数分解:

2 2 × 5 1 × 7 2 × 379 1 × 3331 1

素因数の和:3733
約数の個数: 72
約数和(自身を含む): 3031187040
約数和(自身を除く): 1793987020

約数列:
[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 379, 490, 758, 980, 1516, 1895, 2653, 3331, 3790, 5306, 6662, 7580, 10612, 13265, 13324, 16655, 18571, 23317, 26530, 33310, 37142, 46634, 53060, 66620, 74284, 92855, 93268, 116585, 163219, 185710, 233170, 326438, 371420, 466340, 652876, 816095, 1262449, 1632190, 2524898, 3264380, 5049796, 6312245, 8837143, 12624490, 17674286, 25248980, 35348572, 44185715, 61860001, 88371430, 123720002, 176742860, 247440004, 309300005, 618600010, 1237200020]

約数ペア:
[(1, 1237200020), (2, 618600010), (4, 309300005), (5, 247440004), (7, 176742860), (10, 123720002), (14, 88371430), (20, 61860001), (28, 44185715), (35, 35348572), (49, 25248980), (70, 17674286), (98, 12624490), (140, 8837143), (196, 6312245), (245, 5049796), (379, 3264380), (490, 2524898), (758, 1632190), (980, 1262449), (1516, 816095), (1895, 652876), (2653, 466340), (3331, 371420), (3790, 326438), (5306, 233170), (6662, 185710), (7580, 163219), (10612, 116585), (13265, 93268), (13324, 92855), (16655, 74284), (18571, 66620), (23317, 53060), (26530, 46634), (33310, 37142)]

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