About the Number

12978030

12978029 ← → 12978031

2進数表記:110001100000011101101110

漢数字表記:千二百九十七万八千三十

素因数分解:

2 1 × 3 1 × 5 1 × 13 1 × 107 1 × 311 1

素因数の和:441
約数の個数: 64
約数和(自身を含む): 33965568
約数和(自身を除く): 20987538

約数列:
[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 107, 130, 195, 214, 311, 321, 390, 535, 622, 642, 933, 1070, 1391, 1555, 1605, 1866, 2782, 3110, 3210, 4043, 4173, 4665, 6955, 8086, 8346, 9330, 12129, 13910, 20215, 20865, 24258, 33277, 40430, 41730, 60645, 66554, 99831, 121290, 166385, 199662, 332770, 432601, 499155, 865202, 998310, 1297803, 2163005, 2595606, 4326010, 6489015, 12978030]

約数ペア:
[(1, 12978030), (2, 6489015), (3, 4326010), (5, 2595606), (6, 2163005), (10, 1297803), (13, 998310), (15, 865202), (26, 499155), (30, 432601), (39, 332770), (65, 199662), (78, 166385), (107, 121290), (130, 99831), (195, 66554), (214, 60645), (311, 41730), (321, 40430), (390, 33277), (535, 24258), (622, 20865), (642, 20215), (933, 13910), (1070, 12129), (1391, 9330), (1555, 8346), (1605, 8086), (1866, 6955), (2782, 4665), (3110, 4173), (3210, 4043)]

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