About the Number

1281120

1281119 ← → 1281121

2進数表記:100111000110001100000

漢数字表記:百二十八万千百二十

素因数分解:

2 5 × 3 1 × 5 1 × 17 1 × 157 1

素因数の和:192
約数の個数: 96
約数和(自身を含む): 4300128
約数和(自身を除く): 3019008

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 68, 80, 85, 96, 102, 120, 136, 157, 160, 170, 204, 240, 255, 272, 314, 340, 408, 471, 480, 510, 544, 628, 680, 785, 816, 942, 1020, 1256, 1360, 1570, 1632, 1884, 2040, 2355, 2512, 2669, 2720, 3140, 3768, 4080, 4710, 5024, 5338, 6280, 7536, 8007, 8160, 9420, 10676, 12560, 13345, 15072, 16014, 18840, 21352, 25120, 26690, 32028, 37680, 40035, 42704, 53380, 64056, 75360, 80070, 85408, 106760, 128112, 160140, 213520, 256224, 320280, 427040, 640560, 1281120]

約数ペア:
[(1, 1281120), (2, 640560), (3, 427040), (4, 320280), (5, 256224), (6, 213520), (8, 160140), (10, 128112), (12, 106760), (15, 85408), (16, 80070), (17, 75360), (20, 64056), (24, 53380), (30, 42704), (32, 40035), (34, 37680), (40, 32028), (48, 26690), (51, 25120), (60, 21352), (68, 18840), (80, 16014), (85, 15072), (96, 13345), (102, 12560), (120, 10676), (136, 9420), (157, 8160), (160, 8007), (170, 7536), (204, 6280), (240, 5338), (255, 5024), (272, 4710), (314, 4080), (340, 3768), (408, 3140), (471, 2720), (480, 2669), (510, 2512), (544, 2355), (628, 2040), (680, 1884), (785, 1632), (816, 1570), (942, 1360), (1020, 1256)]

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