About the Number

31728970

31728969 ← → 31728971

2進数表記:1111001000010010101001010

漢数字表記:三千百七十二万八千九百七十

素因数分解:

2 1 × 5 1 × 7 2 × 13 1 × 17 1 × 293 1

素因数の和:344
約数の個数: 96
約数和(自身を含む): 76014288
約数和(自身を除く): 44285318

約数列:
[1, 2, 5, 7, 10, 13, 14, 17, 26, 34, 35, 49, 65, 70, 85, 91, 98, 119, 130, 170, 182, 221, 238, 245, 293, 442, 455, 490, 586, 595, 637, 833, 910, 1105, 1190, 1274, 1465, 1547, 1666, 2051, 2210, 2930, 3094, 3185, 3809, 4102, 4165, 4981, 6370, 7618, 7735, 8330, 9962, 10255, 10829, 14357, 15470, 19045, 20510, 21658, 24905, 26663, 28714, 34867, 38090, 49810, 53326, 54145, 64753, 69734, 71785, 108290, 129506, 133315, 143570, 174335, 186641, 244069, 266630, 323765, 348670, 373282, 453271, 488138, 647530, 906542, 933205, 1220345, 1866410, 2266355, 2440690, 3172897, 4532710, 6345794, 15864485, 31728970]

約数ペア:
[(1, 31728970), (2, 15864485), (5, 6345794), (7, 4532710), (10, 3172897), (13, 2440690), (14, 2266355), (17, 1866410), (26, 1220345), (34, 933205), (35, 906542), (49, 647530), (65, 488138), (70, 453271), (85, 373282), (91, 348670), (98, 323765), (119, 266630), (130, 244069), (170, 186641), (182, 174335), (221, 143570), (238, 133315), (245, 129506), (293, 108290), (442, 71785), (455, 69734), (490, 64753), (586, 54145), (595, 53326), (637, 49810), (833, 38090), (910, 34867), (1105, 28714), (1190, 26663), (1274, 24905), (1465, 21658), (1547, 20510), (1666, 19045), (2051, 15470), (2210, 14357), (2930, 10829), (3094, 10255), (3185, 9962), (3809, 8330), (4102, 7735), (4165, 7618), (4981, 6370)]

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