About the Number

1288492740

1288492739 ← → 1288492741

2進数表記:1001100110011001101011011000100

漢数字表記:十二億八千八百四十九万二千七百四十

素因数分解:

2 2 × 3 2 × 5 1 × 59 1 × 121327 1

素因数の和:121401
約数の個数: 72
約数和(自身を含む): 3974705280
約数和(自身を除く): 2686212540

約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 59, 60, 90, 118, 177, 180, 236, 295, 354, 531, 590, 708, 885, 1062, 1180, 1770, 2124, 2655, 3540, 5310, 10620, 121327, 242654, 363981, 485308, 606635, 727962, 1091943, 1213270, 1455924, 1819905, 2183886, 2426540, 3639810, 4367772, 5459715, 7158293, 7279620, 10919430, 14316586, 21474879, 21838860, 28633172, 35791465, 42949758, 64424637, 71582930, 85899516, 107374395, 128849274, 143165860, 214748790, 257698548, 322123185, 429497580, 644246370, 1288492740]

約数ペア:
[(1, 1288492740), (2, 644246370), (3, 429497580), (4, 322123185), (5, 257698548), (6, 214748790), (9, 143165860), (10, 128849274), (12, 107374395), (15, 85899516), (18, 71582930), (20, 64424637), (30, 42949758), (36, 35791465), (45, 28633172), (59, 21838860), (60, 21474879), (90, 14316586), (118, 10919430), (177, 7279620), (180, 7158293), (236, 5459715), (295, 4367772), (354, 3639810), (531, 2426540), (590, 2183886), (708, 1819905), (885, 1455924), (1062, 1213270), (1180, 1091943), (1770, 727962), (2124, 606635), (2655, 485308), (3540, 363981), (5310, 242654), (10620, 121327)]

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