77887460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:178

約数の個数: 144

約数和(自身を含む): 206841600

約数和(自身を除く): 128954140

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 47, 49, 70, 76, 89, 94, 95, 98, 133, 140, 178, 188, 190, 196, 235, 245, 266, 329, 356, 380, 445, 470, 490, 532, 623, 658, 665, 890, 893, 931, 940, 980, 1246, 1316, 1330, 1645, 1691, 1780, 1786, 1862, 2303, 2492, 2660, 3115, 3290, 3382, 3572, 3724, 4183, 4361, 4465, 4606, 4655, 6230, 6251, 6580, 6764, 8366, 8455, 8722, 8930, 9212, 9310, 11515, 11837, 12460, 12502, 16732, 16910, 17444, 17860, 18620, 20915, 21805, 23030, 23674, 25004, 29281, 31255, 33820, 41830, 43610, 43757, 46060, 47348, 58562, 59185, 62510, 79477, 82859, 83660, 87220, 87514, 117124, 118370, 125020, 146405, 158954, 165718, 175028, 204967, 218785, 236740, 292810, 317908, 331436, 397385, 409934, 414295, 437570, 556339, 585620, 794770, 819868, 828590, 875140, 1024835, 1112678, 1589540, 1657180, 2049670, 2225356, 2781695, 3894373, 4099340, 5563390, 7788746, 11126780, 15577492, 19471865, 38943730, 77887460]

約数ペア:

[(1, 77887460), (2, 38943730), (4, 19471865), (5, 15577492), (7, 11126780), (10, 7788746), (14, 5563390), (19, 4099340), (20, 3894373), (28, 2781695), (35, 2225356), (38, 2049670), (47, 1657180), (49, 1589540), (70, 1112678), (76, 1024835), (89, 875140), (94, 828590), (95, 819868), (98, 794770), (133, 585620), (140, 556339), (178, 437570), (188, 414295), (190, 409934), (196, 397385), (235, 331436), (245, 317908), (266, 292810), (329, 236740), (356, 218785), (380, 204967), (445, 175028), (470, 165718), (490, 158954), (532, 146405), (623, 125020), (658, 118370), (665, 117124), (890, 87514), (893, 87220), (931, 83660), (940, 82859), (980, 79477), (1246, 62510), (1316, 59185), (1330, 58562), (1645, 47348), (1691, 46060), (1780, 43757), (1786, 43610), (1862, 41830), (2303, 33820), (2492, 31255), (2660, 29281), (3115, 25004), (3290, 23674), (3382, 23030), (3572, 21805), (3724, 20915), (4183, 18620), (4361, 17860), (4465, 17444), (4606, 16910), (4655, 16732), (6230, 12502), (6251, 12460), (6580, 11837), (6764, 11515), (8366, 9310), (8455, 9212), (8722, 8930)]