About the Number

97801990

97801989 ← → 97801991

2進数表記:101110101000101011100000110

漢数字表記:九千七百八十万千九百九十

素因数分解:

2 1 × 5 1 × 11 1 × 13 2 × 5261 1

素因数の和:5305
約数の個数: 48
約数和(自身を含む): 207996336
約数和(自身を除く): 110194346

約数列:
[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 169, 286, 338, 715, 845, 1430, 1690, 1859, 3718, 5261, 9295, 10522, 18590, 26305, 52610, 57871, 68393, 115742, 136786, 289355, 341965, 578710, 683930, 752323, 889109, 1504646, 1778218, 3761615, 4445545, 7523230, 8891090, 9780199, 19560398, 48900995, 97801990]

約数ペア:
[(1, 97801990), (2, 48900995), (5, 19560398), (10, 9780199), (11, 8891090), (13, 7523230), (22, 4445545), (26, 3761615), (55, 1778218), (65, 1504646), (110, 889109), (130, 752323), (143, 683930), (169, 578710), (286, 341965), (338, 289355), (715, 136786), (845, 115742), (1430, 68393), (1690, 57871), (1859, 52610), (3718, 26305), (5261, 18590), (9295, 10522)]

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