20804910700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{19801}}^1$

素因数の和:19920

約数の個数: 144

約数和(自身を含む): 55002035200

約数和(自身を除く): 34197124500

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 25, 28, 35, 38, 50, 70, 76, 79, 95, 100, 133, 140, 158, 175, 190, 266, 316, 350, 380, 395, 475, 532, 553, 665, 700, 790, 950, 1106, 1330, 1501, 1580, 1900, 1975, 2212, 2660, 2765, 3002, 3325, 3950, 5530, 6004, 6650, 7505, 7900, 10507, 11060, 13300, 13825, 15010, 19801, 21014, 27650, 30020, 37525, 39602, 42028, 52535, 55300, 75050, 79204, 99005, 105070, 138607, 150100, 198010, 210140, 262675, 277214, 376219, 396020, 495025, 525350, 554428, 693035, 752438, 990050, 1050700, 1386070, 1504876, 1564279, 1881095, 1980100, 2633533, 2772140, 3128558, 3465175, 3762190, 5267066, 6257116, 6930350, 7524380, 7821395, 9405475, 10534132, 10949953, 13167665, 13860700, 15642790, 18810950, 21899906, 26335330, 29721301, 31285580, 37621900, 39106975, 43799812, 52670660, 54749765, 59442602, 65838325, 78213950, 109499530, 118885204, 131676650, 148606505, 156427900, 208049107, 218999060, 263353300, 273748825, 297213010, 416098214, 547497650, 594426020, 743032525, 832196428, 1040245535, 1094995300, 1486065050, 2080491070, 2972130100, 4160982140, 5201227675, 10402455350, 20804910700]

約数ペア:

[(1, 20804910700), (2, 10402455350), (4, 5201227675), (5, 4160982140), (7, 2972130100), (10, 2080491070), (14, 1486065050), (19, 1094995300), (20, 1040245535), (25, 832196428), (28, 743032525), (35, 594426020), (38, 547497650), (50, 416098214), (70, 297213010), (76, 273748825), (79, 263353300), (95, 218999060), (100, 208049107), (133, 156427900), (140, 148606505), (158, 131676650), (175, 118885204), (190, 109499530), (266, 78213950), (316, 65838325), (350, 59442602), (380, 54749765), (395, 52670660), (475, 43799812), (532, 39106975), (553, 37621900), (665, 31285580), (700, 29721301), (790, 26335330), (950, 21899906), (1106, 18810950), (1330, 15642790), (1501, 13860700), (1580, 13167665), (1900, 10949953), (1975, 10534132), (2212, 9405475), (2660, 7821395), (2765, 7524380), (3002, 6930350), (3325, 6257116), (3950, 5267066), (5530, 3762190), (6004, 3465175), (6650, 3128558), (7505, 2772140), (7900, 2633533), (10507, 1980100), (11060, 1881095), (13300, 1564279), (13825, 1504876), (15010, 1386070), (19801, 1050700), (21014, 990050), (27650, 752438), (30020, 693035), (37525, 554428), (39602, 525350), (42028, 495025), (52535, 396020), (55300, 376219), (75050, 277214), (79204, 262675), (99005, 210140), (105070, 198010), (138607, 150100)]