About the Number

131528490

131528489 ← → 131528491

2進数表記:111110101101111011100101010

漢数字表記:一億三千百五十二万八千四百九十

素因数分解:

2 1 × 3 1 × 5 1 × 17 1 × 23 1 × 11213 1

素因数の和:11263
約数の個数: 64
約数和(自身を含む): 348800256
約数和(自身を除く): 217271766

約数列:
[1, 2, 3, 5, 6, 10, 15, 17, 23, 30, 34, 46, 51, 69, 85, 102, 115, 138, 170, 230, 255, 345, 391, 510, 690, 782, 1173, 1955, 2346, 3910, 5865, 11213, 11730, 22426, 33639, 56065, 67278, 112130, 168195, 190621, 257899, 336390, 381242, 515798, 571863, 773697, 953105, 1143726, 1289495, 1547394, 1906210, 2578990, 2859315, 3868485, 4384283, 5718630, 7736970, 8768566, 13152849, 21921415, 26305698, 43842830, 65764245, 131528490]

約数ペア:
[(1, 131528490), (2, 65764245), (3, 43842830), (5, 26305698), (6, 21921415), (10, 13152849), (15, 8768566), (17, 7736970), (23, 5718630), (30, 4384283), (34, 3868485), (46, 2859315), (51, 2578990), (69, 1906210), (85, 1547394), (102, 1289495), (115, 1143726), (138, 953105), (170, 773697), (230, 571863), (255, 515798), (345, 381242), (391, 336390), (510, 257899), (690, 190621), (782, 168195), (1173, 112130), (1955, 67278), (2346, 56065), (3910, 33639), (5865, 22426), (11213, 11730)]

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