About the Number

12989900

12989899 ← → 12989901

2進数表記:110001100011010111001100

漢数字表記:千二百九十八万九千九百

素因数分解:

2 2 × 5 2 × 7 2 × 11 1 × 241 1

素因数の和:280
約数の個数: 108
約数和(自身を含む): 35919576
約数和(自身を除く): 22929676

約数列:
[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 49, 50, 55, 70, 77, 98, 100, 110, 140, 154, 175, 196, 220, 241, 245, 275, 308, 350, 385, 482, 490, 539, 550, 700, 770, 964, 980, 1078, 1100, 1205, 1225, 1540, 1687, 1925, 2156, 2410, 2450, 2651, 2695, 3374, 3850, 4820, 4900, 5302, 5390, 6025, 6748, 7700, 8435, 10604, 10780, 11809, 12050, 13255, 13475, 16870, 18557, 23618, 24100, 26510, 26950, 33740, 37114, 42175, 47236, 53020, 53900, 59045, 66275, 74228, 84350, 92785, 118090, 129899, 132550, 168700, 185570, 236180, 259798, 265100, 295225, 371140, 463925, 519596, 590450, 649495, 927850, 1180900, 1298990, 1855700, 2597980, 3247475, 6494950, 12989900]

約数ペア:
[(1, 12989900), (2, 6494950), (4, 3247475), (5, 2597980), (7, 1855700), (10, 1298990), (11, 1180900), (14, 927850), (20, 649495), (22, 590450), (25, 519596), (28, 463925), (35, 371140), (44, 295225), (49, 265100), (50, 259798), (55, 236180), (70, 185570), (77, 168700), (98, 132550), (100, 129899), (110, 118090), (140, 92785), (154, 84350), (175, 74228), (196, 66275), (220, 59045), (241, 53900), (245, 53020), (275, 47236), (308, 42175), (350, 37114), (385, 33740), (482, 26950), (490, 26510), (539, 24100), (550, 23618), (700, 18557), (770, 16870), (964, 13475), (980, 13255), (1078, 12050), (1100, 11809), (1205, 10780), (1225, 10604), (1540, 8435), (1687, 7700), (1925, 6748), (2156, 6025), (2410, 5390), (2450, 5302), (2651, 4900), (2695, 4820), (3374, 3850)]

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