About the Number

128440970

128440969 ← → 128440971

2進数表記:111101001111101101010001010

漢数字表記:一億二千八百四十四万九百七十

素因数分解:

2 1 × 5 1 × 7 1 × 23 1 × 79777 1

素因数の和:79814
約数の個数: 32
約数和(自身を含む): 275712768
約数和(自身を除く): 147271798

約数列:
[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 115, 161, 230, 322, 805, 1610, 79777, 159554, 398885, 558439, 797770, 1116878, 1834871, 2792195, 3669742, 5584390, 9174355, 12844097, 18348710, 25688194, 64220485, 128440970]

約数ペア:
[(1, 128440970), (2, 64220485), (5, 25688194), (7, 18348710), (10, 12844097), (14, 9174355), (23, 5584390), (35, 3669742), (46, 2792195), (70, 1834871), (115, 1116878), (161, 797770), (230, 558439), (322, 398885), (805, 159554), (1610, 79777)]

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