About the Number

12988920

12988919 ← → 12988921

2進数表記:110001100011000111111000

漢数字表記:千二百九十八万八千九百二十

素因数分解:

2 3 × 3 1 × 5 1 × 7 2 × 47 2

素因数の和:122
約数の個数: 144
約数和(自身を含む): 46313640
約数和(自身を除く): 33324720

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 47, 49, 56, 60, 70, 84, 94, 98, 105, 120, 140, 141, 147, 168, 188, 196, 210, 235, 245, 280, 282, 294, 329, 376, 392, 420, 470, 490, 564, 588, 658, 705, 735, 840, 940, 980, 987, 1128, 1176, 1316, 1410, 1470, 1645, 1880, 1960, 1974, 2209, 2303, 2632, 2820, 2940, 3290, 3948, 4418, 4606, 4935, 5640, 5880, 6580, 6627, 6909, 7896, 8836, 9212, 9870, 11045, 11515, 13160, 13254, 13818, 15463, 17672, 18424, 19740, 22090, 23030, 26508, 27636, 30926, 33135, 34545, 39480, 44180, 46060, 46389, 53016, 55272, 61852, 66270, 69090, 77315, 88360, 92120, 92778, 108241, 123704, 132540, 138180, 154630, 185556, 216482, 231945, 265080, 276360, 309260, 324723, 371112, 432964, 463890, 541205, 618520, 649446, 865928, 927780, 1082410, 1298892, 1623615, 1855560, 2164820, 2597784, 3247230, 4329640, 6494460, 12988920]

約数ペア:
[(1, 12988920), (2, 6494460), (3, 4329640), (4, 3247230), (5, 2597784), (6, 2164820), (7, 1855560), (8, 1623615), (10, 1298892), (12, 1082410), (14, 927780), (15, 865928), (20, 649446), (21, 618520), (24, 541205), (28, 463890), (30, 432964), (35, 371112), (40, 324723), (42, 309260), (47, 276360), (49, 265080), (56, 231945), (60, 216482), (70, 185556), (84, 154630), (94, 138180), (98, 132540), (105, 123704), (120, 108241), (140, 92778), (141, 92120), (147, 88360), (168, 77315), (188, 69090), (196, 66270), (210, 61852), (235, 55272), (245, 53016), (280, 46389), (282, 46060), (294, 44180), (329, 39480), (376, 34545), (392, 33135), (420, 30926), (470, 27636), (490, 26508), (564, 23030), (588, 22090), (658, 19740), (705, 18424), (735, 17672), (840, 15463), (940, 13818), (980, 13254), (987, 13160), (1128, 11515), (1176, 11045), (1316, 9870), (1410, 9212), (1470, 8836), (1645, 7896), (1880, 6909), (1960, 6627), (1974, 6580), (2209, 5880), (2303, 5640), (2632, 4935), (2820, 4606), (2940, 4418), (3290, 3948)]

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