About the Number

81329430

81329429 ← → 81329431

2進数表記:100110110001111110100010110

漢数字表記:八千百三十二万九千四百三十

素因数分解:

2 1 × 3 1 × 5 1 × 7 1 × 13 1 × 31 3

素因数の和:123
約数の個数: 128
約数和(自身を含む): 248242176
約数和(自身を除く): 166912746

約数列:
[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 31, 35, 39, 42, 62, 65, 70, 78, 91, 93, 105, 130, 155, 182, 186, 195, 210, 217, 273, 310, 390, 403, 434, 455, 465, 546, 651, 806, 910, 930, 961, 1085, 1209, 1302, 1365, 1922, 2015, 2170, 2418, 2730, 2821, 2883, 3255, 4030, 4805, 5642, 5766, 6045, 6510, 6727, 8463, 9610, 12090, 12493, 13454, 14105, 14415, 16926, 20181, 24986, 28210, 28830, 29791, 33635, 37479, 40362, 42315, 59582, 62465, 67270, 74958, 84630, 87451, 89373, 100905, 124930, 148955, 174902, 178746, 187395, 201810, 208537, 262353, 297910, 374790, 387283, 417074, 437255, 446865, 524706, 625611, 774566, 874510, 893730, 1042685, 1161849, 1251222, 1311765, 1936415, 2085370, 2323698, 2623530, 2710981, 3128055, 3872830, 5421962, 5809245, 6256110, 8132943, 11618490, 13554905, 16265886, 27109810, 40664715, 81329430]

約数ペア:
[(1, 81329430), (2, 40664715), (3, 27109810), (5, 16265886), (6, 13554905), (7, 11618490), (10, 8132943), (13, 6256110), (14, 5809245), (15, 5421962), (21, 3872830), (26, 3128055), (30, 2710981), (31, 2623530), (35, 2323698), (39, 2085370), (42, 1936415), (62, 1311765), (65, 1251222), (70, 1161849), (78, 1042685), (91, 893730), (93, 874510), (105, 774566), (130, 625611), (155, 524706), (182, 446865), (186, 437255), (195, 417074), (210, 387283), (217, 374790), (273, 297910), (310, 262353), (390, 208537), (403, 201810), (434, 187395), (455, 178746), (465, 174902), (546, 148955), (651, 124930), (806, 100905), (910, 89373), (930, 87451), (961, 84630), (1085, 74958), (1209, 67270), (1302, 62465), (1365, 59582), (1922, 42315), (2015, 40362), (2170, 37479), (2418, 33635), (2730, 29791), (2821, 28830), (2883, 28210), (3255, 24986), (4030, 20181), (4805, 16926), (5642, 14415), (5766, 14105), (6045, 13454), (6510, 12493), (6727, 12090), (8463, 9610)]

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