About the Number

216660990

216660989 ← → 216660991

2進数表記:1100111010011111101111111110

漢数字表記:二億千六百六十六万九百九十

素因数分解:

2 1 × 3 1 × 5 1 × 7 1 × 13 1 × 19 1 × 4177 1

素因数の和:4226
約数の個数: 128
約数和(自身を含む): 673827840
約数和(自身を除く): 457166850

約数列:
[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 19, 21, 26, 30, 35, 38, 39, 42, 57, 65, 70, 78, 91, 95, 105, 114, 130, 133, 182, 190, 195, 210, 247, 266, 273, 285, 390, 399, 455, 494, 546, 570, 665, 741, 798, 910, 1235, 1330, 1365, 1482, 1729, 1995, 2470, 2730, 3458, 3705, 3990, 4177, 5187, 7410, 8354, 8645, 10374, 12531, 17290, 20885, 25062, 25935, 29239, 41770, 51870, 54301, 58478, 62655, 79363, 87717, 108602, 125310, 146195, 158726, 162903, 175434, 238089, 271505, 292390, 325806, 380107, 396815, 438585, 476178, 543010, 555541, 760214, 793630, 814515, 877170, 1031719, 1111082, 1140321, 1190445, 1629030, 1666623, 1900535, 2063438, 2280642, 2380890, 2777705, 3095157, 3333246, 3801070, 5158595, 5555410, 5701605, 6190314, 7222033, 8333115, 10317190, 11403210, 14444066, 15475785, 16666230, 21666099, 30951570, 36110165, 43332198, 72220330, 108330495, 216660990]

約数ペア:
[(1, 216660990), (2, 108330495), (3, 72220330), (5, 43332198), (6, 36110165), (7, 30951570), (10, 21666099), (13, 16666230), (14, 15475785), (15, 14444066), (19, 11403210), (21, 10317190), (26, 8333115), (30, 7222033), (35, 6190314), (38, 5701605), (39, 5555410), (42, 5158595), (57, 3801070), (65, 3333246), (70, 3095157), (78, 2777705), (91, 2380890), (95, 2280642), (105, 2063438), (114, 1900535), (130, 1666623), (133, 1629030), (182, 1190445), (190, 1140321), (195, 1111082), (210, 1031719), (247, 877170), (266, 814515), (273, 793630), (285, 760214), (390, 555541), (399, 543010), (455, 476178), (494, 438585), (546, 396815), (570, 380107), (665, 325806), (741, 292390), (798, 271505), (910, 238089), (1235, 175434), (1330, 162903), (1365, 158726), (1482, 146195), (1729, 125310), (1995, 108602), (2470, 87717), (2730, 79363), (3458, 62655), (3705, 58478), (3990, 54301), (4177, 51870), (5187, 41770), (7410, 29239), (8354, 25935), (8645, 25062), (10374, 20885), (12531, 17290)]

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