About the Number

1290987180

1290987179 ← → 1290987181

2進数表記:1001100111100101110011010101100

漢数字表記:十二億九千九十八万七千百八十

素因数分解:

2 2 × 3 3 × 5 1 × 7 1 × 239 1 × 1429 1

素因数の和:1693
約数の個数: 192
約数和(自身を含む): 4612608000
約数和(自身を除く): 3321620820

約数列:
[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 239, 252, 270, 315, 378, 420, 478, 540, 630, 717, 756, 945, 956, 1195, 1260, 1429, 1434, 1673, 1890, 2151, 2390, 2858, 2868, 3346, 3585, 3780, 4287, 4302, 4780, 5019, 5716, 6453, 6692, 7145, 7170, 8365, 8574, 8604, 10003, 10038, 10755, 12861, 12906, 14290, 14340, 15057, 16730, 17148, 20006, 20076, 21435, 21510, 25095, 25722, 25812, 28580, 30009, 30114, 32265, 33460, 38583, 40012, 42870, 43020, 45171, 50015, 50190, 51444, 60018, 60228, 64305, 64530, 75285, 77166, 85740, 90027, 90342, 100030, 100380, 120036, 128610, 129060, 150045, 150570, 154332, 180054, 180684, 192915, 200060, 225855, 257220, 270081, 300090, 301140, 341531, 360108, 385830, 450135, 451710, 540162, 600180, 683062, 771660, 900270, 903420, 1024593, 1080324, 1350405, 1366124, 1707655, 1800540, 2049186, 2390717, 2700810, 3073779, 3415310, 4098372, 4781434, 5122965, 5401620, 6147558, 6830620, 7172151, 9221337, 9562868, 10245930, 11953585, 12295116, 14344302, 15368895, 18442674, 20491860, 21516453, 23907170, 28688604, 30737790, 35860755, 36885348, 43032906, 46106685, 47814340, 61475580, 64549359, 71721510, 86065812, 92213370, 107582265, 129098718, 143443020, 184426740, 215164530, 258197436, 322746795, 430329060, 645493590, 1290987180]

約数ペア:
[(1, 1290987180), (2, 645493590), (3, 430329060), (4, 322746795), (5, 258197436), (6, 215164530), (7, 184426740), (9, 143443020), (10, 129098718), (12, 107582265), (14, 92213370), (15, 86065812), (18, 71721510), (20, 64549359), (21, 61475580), (27, 47814340), (28, 46106685), (30, 43032906), (35, 36885348), (36, 35860755), (42, 30737790), (45, 28688604), (54, 23907170), (60, 21516453), (63, 20491860), (70, 18442674), (84, 15368895), (90, 14344302), (105, 12295116), (108, 11953585), (126, 10245930), (135, 9562868), (140, 9221337), (180, 7172151), (189, 6830620), (210, 6147558), (239, 5401620), (252, 5122965), (270, 4781434), (315, 4098372), (378, 3415310), (420, 3073779), (478, 2700810), (540, 2390717), (630, 2049186), (717, 1800540), (756, 1707655), (945, 1366124), (956, 1350405), (1195, 1080324), (1260, 1024593), (1429, 903420), (1434, 900270), (1673, 771660), (1890, 683062), (2151, 600180), (2390, 540162), (2858, 451710), (2868, 450135), (3346, 385830), (3585, 360108), (3780, 341531), (4287, 301140), (4302, 300090), (4780, 270081), (5019, 257220), (5716, 225855), (6453, 200060), (6692, 192915), (7145, 180684), (7170, 180054), (8365, 154332), (8574, 150570), (8604, 150045), (10003, 129060), (10038, 128610), (10755, 120036), (12861, 100380), (12906, 100030), (14290, 90342), (14340, 90027), (15057, 85740), (16730, 77166), (17148, 75285), (20006, 64530), (20076, 64305), (21435, 60228), (21510, 60018), (25095, 51444), (25722, 50190), (25812, 50015), (28580, 45171), (30009, 43020), (30114, 42870), (32265, 40012), (33460, 38583)]

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