About the Number

89970990

89970989 ← → 89970991

2進数表記:101010111001101100100101110

漢数字表記:八千九百九十七万九百九十

素因数分解:

2 1 × 3 1 × 5 1 × 31 1 × 89 1 × 1087 1

素因数の和:1217
約数の個数: 64
約数和(自身を含む): 225607680
約数和(自身を除く): 135636690

約数列:
[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 89, 93, 155, 178, 186, 267, 310, 445, 465, 534, 890, 930, 1087, 1335, 2174, 2670, 2759, 3261, 5435, 5518, 6522, 8277, 10870, 13795, 16305, 16554, 27590, 32610, 33697, 41385, 67394, 82770, 96743, 101091, 168485, 193486, 202182, 290229, 336970, 483715, 505455, 580458, 967430, 1010910, 1451145, 2902290, 2999033, 5998066, 8997099, 14995165, 17994198, 29990330, 44985495, 89970990]

約数ペア:
[(1, 89970990), (2, 44985495), (3, 29990330), (5, 17994198), (6, 14995165), (10, 8997099), (15, 5998066), (30, 2999033), (31, 2902290), (62, 1451145), (89, 1010910), (93, 967430), (155, 580458), (178, 505455), (186, 483715), (267, 336970), (310, 290229), (445, 202182), (465, 193486), (534, 168485), (890, 101091), (930, 96743), (1087, 82770), (1335, 67394), (2174, 41385), (2670, 33697), (2759, 32610), (3261, 27590), (5435, 16554), (5518, 16305), (6522, 13795), (8277, 10870)]

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