19701640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{4139}}^1$

素因数の和:4174

約数の個数: 64

約数和(自身を含む): 53654400

約数和(自身を除く): 33952760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 119, 136, 140, 170, 238, 280, 340, 476, 595, 680, 952, 1190, 2380, 4139, 4760, 8278, 16556, 20695, 28973, 33112, 41390, 57946, 70363, 82780, 115892, 140726, 144865, 165560, 231784, 281452, 289730, 351815, 492541, 562904, 579460, 703630, 985082, 1158920, 1407260, 1970164, 2462705, 2814520, 3940328, 4925410, 9850820, 19701640]

約数ペア:

[(1, 19701640), (2, 9850820), (4, 4925410), (5, 3940328), (7, 2814520), (8, 2462705), (10, 1970164), (14, 1407260), (17, 1158920), (20, 985082), (28, 703630), (34, 579460), (35, 562904), (40, 492541), (56, 351815), (68, 289730), (70, 281452), (85, 231784), (119, 165560), (136, 144865), (140, 140726), (170, 115892), (238, 82780), (280, 70363), (340, 57946), (476, 41390), (595, 33112), (680, 28973), (952, 20695), (1190, 16556), (2380, 8278), (4139, 4760)]