661206420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{2719}}^1$

素因数の和:2934

約数の個数: 144

約数和(自身を含む): 2304906240

約数和(自身を除く): 1643699820

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 193, 210, 252, 315, 386, 420, 579, 630, 772, 965, 1158, 1260, 1351, 1737, 1930, 2316, 2702, 2719, 2895, 3474, 3860, 4053, 5404, 5438, 5790, 6755, 6948, 8106, 8157, 8685, 10876, 11580, 12159, 13510, 13595, 16212, 16314, 17370, 19033, 20265, 24318, 24471, 27020, 27190, 32628, 34740, 38066, 40530, 40785, 48636, 48942, 54380, 57099, 60795, 76132, 81060, 81570, 95165, 97884, 114198, 121590, 122355, 163140, 171297, 190330, 228396, 243180, 244710, 285495, 342594, 380660, 489420, 524767, 570990, 685188, 856485, 1049534, 1141980, 1574301, 1712970, 2099068, 2623835, 3148602, 3425940, 3673369, 4722903, 5247670, 6297204, 7346738, 7871505, 9445806, 10495340, 11020107, 14693476, 15743010, 18366845, 18891612, 22040214, 23614515, 31486020, 33060321, 36733690, 44080428, 47229030, 55100535, 66120642, 73467380, 94458060, 110201070, 132241284, 165301605, 220402140, 330603210, 661206420]

約数ペア:

[(1, 661206420), (2, 330603210), (3, 220402140), (4, 165301605), (5, 132241284), (6, 110201070), (7, 94458060), (9, 73467380), (10, 66120642), (12, 55100535), (14, 47229030), (15, 44080428), (18, 36733690), (20, 33060321), (21, 31486020), (28, 23614515), (30, 22040214), (35, 18891612), (36, 18366845), (42, 15743010), (45, 14693476), (60, 11020107), (63, 10495340), (70, 9445806), (84, 7871505), (90, 7346738), (105, 6297204), (126, 5247670), (140, 4722903), (180, 3673369), (193, 3425940), (210, 3148602), (252, 2623835), (315, 2099068), (386, 1712970), (420, 1574301), (579, 1141980), (630, 1049534), (772, 856485), (965, 685188), (1158, 570990), (1260, 524767), (1351, 489420), (1737, 380660), (1930, 342594), (2316, 285495), (2702, 244710), (2719, 243180), (2895, 228396), (3474, 190330), (3860, 171297), (4053, 163140), (5404, 122355), (5438, 121590), (5790, 114198), (6755, 97884), (6948, 95165), (8106, 81570), (8157, 81060), (8685, 76132), (10876, 60795), (11580, 57099), (12159, 54380), (13510, 48942), (13595, 48636), (16212, 40785), (16314, 40530), (17370, 38066), (19033, 34740), (20265, 32628), (24318, 27190), (24471, 27020)]