78625400

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:214

約数の個数: 144

約数和(自身を含む): 217553040

約数和(自身を除く): 138927640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 71, 98, 100, 113, 140, 142, 175, 196, 200, 226, 245, 280, 284, 350, 355, 392, 452, 490, 497, 565, 568, 700, 710, 791, 904, 980, 994, 1130, 1225, 1400, 1420, 1582, 1775, 1960, 1988, 2260, 2450, 2485, 2825, 2840, 3164, 3479, 3550, 3955, 3976, 4520, 4900, 4970, 5537, 5650, 6328, 6958, 7100, 7910, 8023, 9800, 9940, 11074, 11300, 12425, 13916, 14200, 15820, 16046, 17395, 19775, 19880, 22148, 22600, 24850, 27685, 27832, 31640, 32092, 34790, 39550, 40115, 44296, 49700, 55370, 56161, 64184, 69580, 79100, 80230, 86975, 99400, 110740, 112322, 138425, 139160, 158200, 160460, 173950, 200575, 221480, 224644, 276850, 280805, 320920, 347900, 393127, 401150, 449288, 553700, 561610, 695800, 786254, 802300, 1107400, 1123220, 1404025, 1572508, 1604600, 1965635, 2246440, 2808050, 3145016, 3931270, 5616100, 7862540, 9828175, 11232200, 15725080, 19656350, 39312700, 78625400]

約数ペア:

[(1, 78625400), (2, 39312700), (4, 19656350), (5, 15725080), (7, 11232200), (8, 9828175), (10, 7862540), (14, 5616100), (20, 3931270), (25, 3145016), (28, 2808050), (35, 2246440), (40, 1965635), (49, 1604600), (50, 1572508), (56, 1404025), (70, 1123220), (71, 1107400), (98, 802300), (100, 786254), (113, 695800), (140, 561610), (142, 553700), (175, 449288), (196, 401150), (200, 393127), (226, 347900), (245, 320920), (280, 280805), (284, 276850), (350, 224644), (355, 221480), (392, 200575), (452, 173950), (490, 160460), (497, 158200), (565, 139160), (568, 138425), (700, 112322), (710, 110740), (791, 99400), (904, 86975), (980, 80230), (994, 79100), (1130, 69580), (1225, 64184), (1400, 56161), (1420, 55370), (1582, 49700), (1775, 44296), (1960, 40115), (1988, 39550), (2260, 34790), (2450, 32092), (2485, 31640), (2825, 27832), (2840, 27685), (3164, 24850), (3479, 22600), (3550, 22148), (3955, 19880), (3976, 19775), (4520, 17395), (4900, 16046), (4970, 15820), (5537, 14200), (5650, 13916), (6328, 12425), (6958, 11300), (7100, 11074), (7910, 9940), (8023, 9800)]