About the Number

1388892225

1388892224 ← → 1388892226

2進数表記:1010010110010001101000001000001

漢数字表記:十三億八千八百八十九万二千二百二十五

素因数分解:

3 1 × 5 2 × 7 1 × 31 1 × 61 1 × 1399 1

素因数の和:1511
約数の個数: 96
約数和(自身を含む): 2755379200
約数和(自身を除く): 1366486975

約数列:
[1, 3, 5, 7, 15, 21, 25, 31, 35, 61, 75, 93, 105, 155, 175, 183, 217, 305, 427, 465, 525, 651, 775, 915, 1085, 1281, 1399, 1525, 1891, 2135, 2325, 3255, 4197, 4575, 5425, 5673, 6405, 6995, 9455, 9793, 10675, 13237, 16275, 20985, 28365, 29379, 32025, 34975, 39711, 43369, 47275, 48965, 66185, 85339, 104925, 130107, 141825, 146895, 198555, 216845, 244825, 256017, 303583, 330925, 426695, 597373, 650535, 734475, 910749, 992775, 1084225, 1280085, 1517915, 1792119, 2133475, 2645509, 2986865, 3252675, 4553745, 6400425, 7589575, 7936527, 8960595, 13227545, 14934325, 18518563, 22768725, 39682635, 44802975, 55555689, 66137725, 92592815, 198413175, 277778445, 462964075, 1388892225]

約数ペア:
[(1, 1388892225), (3, 462964075), (5, 277778445), (7, 198413175), (15, 92592815), (21, 66137725), (25, 55555689), (31, 44802975), (35, 39682635), (61, 22768725), (75, 18518563), (93, 14934325), (105, 13227545), (155, 8960595), (175, 7936527), (183, 7589575), (217, 6400425), (305, 4553745), (427, 3252675), (465, 2986865), (525, 2645509), (651, 2133475), (775, 1792119), (915, 1517915), (1085, 1280085), (1281, 1084225), (1399, 992775), (1525, 910749), (1891, 734475), (2135, 650535), (2325, 597373), (3255, 426695), (4197, 330925), (4575, 303583), (5425, 256017), (5673, 244825), (6405, 216845), (6995, 198555), (9455, 146895), (9793, 141825), (10675, 130107), (13237, 104925), (16275, 85339), (20985, 66185), (28365, 48965), (29379, 47275), (32025, 43369), (34975, 39711)]

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