About the Number

211728990

211728989 ← → 211728991

2進数表記:1100100111101011101001011110

漢数字表記:二億千百七十二万八千九百九十

素因数分解:

2 1 × 3 1 × 5 1 × 11 1 × 43 2 × 347 1

素因数の和:454
約数の個数: 96
約数和(自身を含む): 569172096
約数和(自身を除く): 357443106

約数列:
[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 43, 55, 66, 86, 110, 129, 165, 215, 258, 330, 347, 430, 473, 645, 694, 946, 1041, 1290, 1419, 1735, 1849, 2082, 2365, 2838, 3470, 3698, 3817, 4730, 5205, 5547, 7095, 7634, 9245, 10410, 11094, 11451, 14190, 14921, 18490, 19085, 20339, 22902, 27735, 29842, 38170, 40678, 44763, 55470, 57255, 61017, 74605, 89526, 101695, 114510, 122034, 149210, 164131, 203390, 223815, 305085, 328262, 447630, 492393, 610170, 641603, 820655, 984786, 1283206, 1641310, 1924809, 2461965, 3208015, 3849618, 4923930, 6416030, 7057633, 9624045, 14115266, 19248090, 21172899, 35288165, 42345798, 70576330, 105864495, 211728990]

約数ペア:
[(1, 211728990), (2, 105864495), (3, 70576330), (5, 42345798), (6, 35288165), (10, 21172899), (11, 19248090), (15, 14115266), (22, 9624045), (30, 7057633), (33, 6416030), (43, 4923930), (55, 3849618), (66, 3208015), (86, 2461965), (110, 1924809), (129, 1641310), (165, 1283206), (215, 984786), (258, 820655), (330, 641603), (347, 610170), (430, 492393), (473, 447630), (645, 328262), (694, 305085), (946, 223815), (1041, 203390), (1290, 164131), (1419, 149210), (1735, 122034), (1849, 114510), (2082, 101695), (2365, 89526), (2838, 74605), (3470, 61017), (3698, 57255), (3817, 55470), (4730, 44763), (5205, 40678), (5547, 38170), (7095, 29842), (7634, 27735), (9245, 22902), (10410, 20339), (11094, 19085), (11451, 18490), (14190, 14921)]

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