About the Number

801415980

801415979 ← → 801415981

2進数表記:101111110001001010001100101100

漢数字表記:八億百四十一万五千九百八十

素因数分解:

2 2 × 3 2 × 5 1 × 211 1 × 21101 1

素因数の和:21327
約数の個数: 72
約数和(自身を含む): 2442598704
約数和(自身を除く): 1641182724

約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 211, 422, 633, 844, 1055, 1266, 1899, 2110, 2532, 3165, 3798, 4220, 6330, 7596, 9495, 12660, 18990, 21101, 37980, 42202, 63303, 84404, 105505, 126606, 189909, 211010, 253212, 316515, 379818, 422020, 633030, 759636, 949545, 1266060, 1899090, 3798180, 4452311, 8904622, 13356933, 17809244, 22261555, 26713866, 40070799, 44523110, 53427732, 66784665, 80141598, 89046220, 133569330, 160283196, 200353995, 267138660, 400707990, 801415980]

約数ペア:
[(1, 801415980), (2, 400707990), (3, 267138660), (4, 200353995), (5, 160283196), (6, 133569330), (9, 89046220), (10, 80141598), (12, 66784665), (15, 53427732), (18, 44523110), (20, 40070799), (30, 26713866), (36, 22261555), (45, 17809244), (60, 13356933), (90, 8904622), (180, 4452311), (211, 3798180), (422, 1899090), (633, 1266060), (844, 949545), (1055, 759636), (1266, 633030), (1899, 422020), (2110, 379818), (2532, 316515), (3165, 253212), (3798, 211010), (4220, 189909), (6330, 126606), (7596, 105505), (9495, 84404), (12660, 63303), (18990, 42202), (21101, 37980)]

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