About the Number

129271380

129271379 ← → 129271381

2進数表記:111101101001000011001010100

漢数字表記:一億二千九百二十七万千三百八十

素因数分解:

2 2 × 3 1 × 5 1 × 7 1 × 347 1 × 887 1

素因数の和:1253
約数の個数: 96
約数和(自身を含む): 415328256
約数和(自身を除く): 286056876

約数列:
[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 347, 420, 694, 887, 1041, 1388, 1735, 1774, 2082, 2429, 2661, 3470, 3548, 4164, 4435, 4858, 5205, 5322, 6209, 6940, 7287, 8870, 9716, 10410, 10644, 12145, 12418, 13305, 14574, 17740, 18627, 20820, 24290, 24836, 26610, 29148, 31045, 36435, 37254, 48580, 53220, 62090, 72870, 74508, 93135, 124180, 145740, 186270, 307789, 372540, 615578, 923367, 1231156, 1538945, 1846734, 2154523, 3077890, 3693468, 4309046, 4616835, 6155780, 6463569, 8618092, 9233670, 10772615, 12927138, 18467340, 21545230, 25854276, 32317845, 43090460, 64635690, 129271380]

約数ペア:
[(1, 129271380), (2, 64635690), (3, 43090460), (4, 32317845), (5, 25854276), (6, 21545230), (7, 18467340), (10, 12927138), (12, 10772615), (14, 9233670), (15, 8618092), (20, 6463569), (21, 6155780), (28, 4616835), (30, 4309046), (35, 3693468), (42, 3077890), (60, 2154523), (70, 1846734), (84, 1538945), (105, 1231156), (140, 923367), (210, 615578), (347, 372540), (420, 307789), (694, 186270), (887, 145740), (1041, 124180), (1388, 93135), (1735, 74508), (1774, 72870), (2082, 62090), (2429, 53220), (2661, 48580), (3470, 37254), (3548, 36435), (4164, 31045), (4435, 29148), (4858, 26610), (5205, 24836), (5322, 24290), (6209, 20820), (6940, 18627), (7287, 17740), (8870, 14574), (9716, 13305), (10410, 12418), (10644, 12145)]

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