About the Number

127281420

127281419 ← → 127281421

2進数表記:111100101100010100100001100

漢数字表記:一億二千七百二十八万千四百二十

素因数分解:

2 2 × 3 2 × 5 1 × 7 2 × 14431 1

素因数の和:14460
約数の個数: 108
約数和(自身を含む): 449152704
約数和(自身を除く): 321871284

約数列:
[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2940, 4410, 8820, 14431, 28862, 43293, 57724, 72155, 86586, 101017, 129879, 144310, 173172, 202034, 216465, 259758, 288620, 303051, 404068, 432930, 505085, 519516, 606102, 649395, 707119, 865860, 909153, 1010170, 1212204, 1298790, 1414238, 1515255, 1818306, 2020340, 2121357, 2597580, 2828476, 3030510, 3535595, 3636612, 4242714, 4545765, 6061020, 6364071, 7071190, 8485428, 9091530, 10606785, 12728142, 14142380, 18183060, 21213570, 25456284, 31820355, 42427140, 63640710, 127281420]

約数ペア:
[(1, 127281420), (2, 63640710), (3, 42427140), (4, 31820355), (5, 25456284), (6, 21213570), (7, 18183060), (9, 14142380), (10, 12728142), (12, 10606785), (14, 9091530), (15, 8485428), (18, 7071190), (20, 6364071), (21, 6061020), (28, 4545765), (30, 4242714), (35, 3636612), (36, 3535595), (42, 3030510), (45, 2828476), (49, 2597580), (60, 2121357), (63, 2020340), (70, 1818306), (84, 1515255), (90, 1414238), (98, 1298790), (105, 1212204), (126, 1010170), (140, 909153), (147, 865860), (180, 707119), (196, 649395), (210, 606102), (245, 519516), (252, 505085), (294, 432930), (315, 404068), (420, 303051), (441, 288620), (490, 259758), (588, 216465), (630, 202034), (735, 173172), (882, 144310), (980, 129879), (1260, 101017), (1470, 86586), (1764, 72155), (2205, 57724), (2940, 43293), (4410, 28862), (8820, 14431)]

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