19699960

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^2$

素因数の和:90

約数の個数: 144

約数和(自身を含む): 56737800

約数和(自身を除く): 37037840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 23, 28, 35, 38, 40, 46, 49, 56, 70, 76, 92, 95, 98, 115, 133, 140, 152, 161, 184, 190, 196, 230, 245, 266, 280, 322, 380, 392, 437, 460, 490, 529, 532, 644, 665, 760, 805, 874, 920, 931, 980, 1058, 1064, 1127, 1288, 1330, 1610, 1748, 1862, 1960, 2116, 2185, 2254, 2645, 2660, 3059, 3220, 3496, 3703, 3724, 4232, 4370, 4508, 4655, 5290, 5320, 5635, 6118, 6440, 7406, 7448, 8740, 9016, 9310, 10051, 10580, 11270, 12236, 14812, 15295, 17480, 18515, 18620, 20102, 21160, 21413, 22540, 24472, 25921, 29624, 30590, 37030, 37240, 40204, 42826, 45080, 50255, 51842, 61180, 70357, 74060, 80408, 85652, 100510, 103684, 107065, 122360, 129605, 140714, 148120, 171304, 201020, 207368, 214130, 259210, 281428, 351785, 402040, 428260, 492499, 518420, 562856, 703570, 856520, 984998, 1036840, 1407140, 1969996, 2462495, 2814280, 3939992, 4924990, 9849980, 19699960]

約数ペア:

[(1, 19699960), (2, 9849980), (4, 4924990), (5, 3939992), (7, 2814280), (8, 2462495), (10, 1969996), (14, 1407140), (19, 1036840), (20, 984998), (23, 856520), (28, 703570), (35, 562856), (38, 518420), (40, 492499), (46, 428260), (49, 402040), (56, 351785), (70, 281428), (76, 259210), (92, 214130), (95, 207368), (98, 201020), (115, 171304), (133, 148120), (140, 140714), (152, 129605), (161, 122360), (184, 107065), (190, 103684), (196, 100510), (230, 85652), (245, 80408), (266, 74060), (280, 70357), (322, 61180), (380, 51842), (392, 50255), (437, 45080), (460, 42826), (490, 40204), (529, 37240), (532, 37030), (644, 30590), (665, 29624), (760, 25921), (805, 24472), (874, 22540), (920, 21413), (931, 21160), (980, 20102), (1058, 18620), (1064, 18515), (1127, 17480), (1288, 15295), (1330, 14812), (1610, 12236), (1748, 11270), (1862, 10580), (1960, 10051), (2116, 9310), (2185, 9016), (2254, 8740), (2645, 7448), (2660, 7406), (3059, 6440), (3220, 6118), (3496, 5635), (3703, 5320), (3724, 5290), (4232, 4655), (4370, 4508)]