About the Number

30047990

30047989 ← → 30047991

2進数表記:1110010100111111011110110

漢数字表記:三千四万七千九百九十

素因数分解:

2 1 × 5 1 × 7 1 × 31 1 × 61 1 × 227 1

素因数の和:333
約数の個数: 64
約数和(自身を含む): 65138688
約数和(自身を除く): 35090698

約数列:
[1, 2, 5, 7, 10, 14, 31, 35, 61, 62, 70, 122, 155, 217, 227, 305, 310, 427, 434, 454, 610, 854, 1085, 1135, 1589, 1891, 2135, 2170, 2270, 3178, 3782, 4270, 7037, 7945, 9455, 13237, 13847, 14074, 15890, 18910, 26474, 27694, 35185, 49259, 66185, 69235, 70370, 96929, 98518, 132370, 138470, 193858, 246295, 429257, 484645, 492590, 858514, 969290, 2146285, 3004799, 4292570, 6009598, 15023995, 30047990]

約数ペア:
[(1, 30047990), (2, 15023995), (5, 6009598), (7, 4292570), (10, 3004799), (14, 2146285), (31, 969290), (35, 858514), (61, 492590), (62, 484645), (70, 429257), (122, 246295), (155, 193858), (217, 138470), (227, 132370), (305, 98518), (310, 96929), (427, 70370), (434, 69235), (454, 66185), (610, 49259), (854, 35185), (1085, 27694), (1135, 26474), (1589, 18910), (1891, 15890), (2135, 14074), (2170, 13847), (2270, 13237), (3178, 9455), (3782, 7945), (4270, 7037)]

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