About the Number

245740940

245740939 ← → 245740941

2進数表記:1110101001011011010110001100

漢数字表記:二億四千五百七十四万九百四十

素因数分解:

2 2 × 5 1 × 61 1 × 71 1 × 2837 1

素因数の和:2978
約数の個数: 48
約数和(自身を含む): 532090944
約数和(自身を除く): 286350004

約数列:
[1, 2, 4, 5, 10, 20, 61, 71, 122, 142, 244, 284, 305, 355, 610, 710, 1220, 1420, 2837, 4331, 5674, 8662, 11348, 14185, 17324, 21655, 28370, 43310, 56740, 86620, 173057, 201427, 346114, 402854, 692228, 805708, 865285, 1007135, 1730570, 2014270, 3461140, 4028540, 12287047, 24574094, 49148188, 61435235, 122870470, 245740940]

約数ペア:
[(1, 245740940), (2, 122870470), (4, 61435235), (5, 49148188), (10, 24574094), (20, 12287047), (61, 4028540), (71, 3461140), (122, 2014270), (142, 1730570), (244, 1007135), (284, 865285), (305, 805708), (355, 692228), (610, 402854), (710, 346114), (1220, 201427), (1420, 173057), (2837, 86620), (4331, 56740), (5674, 43310), (8662, 28370), (11348, 21655), (14185, 17324)]

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