19771490

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:167

約数の個数: 64

約数和(自身を含む): 39813120

約数和(自身を除く): 20041630

約数列:

[1, 2, 5, 10, 23, 31, 46, 47, 59, 62, 94, 115, 118, 155, 230, 235, 295, 310, 470, 590, 713, 1081, 1357, 1426, 1457, 1829, 2162, 2714, 2773, 2914, 3565, 3658, 5405, 5546, 6785, 7130, 7285, 9145, 10810, 13570, 13865, 14570, 18290, 27730, 33511, 42067, 63779, 67022, 84134, 85963, 127558, 167555, 171926, 210335, 318895, 335110, 420670, 429815, 637790, 859630, 1977149, 3954298, 9885745, 19771490]

約数ペア:

[(1, 19771490), (2, 9885745), (5, 3954298), (10, 1977149), (23, 859630), (31, 637790), (46, 429815), (47, 420670), (59, 335110), (62, 318895), (94, 210335), (115, 171926), (118, 167555), (155, 127558), (230, 85963), (235, 84134), (295, 67022), (310, 63779), (470, 42067), (590, 33511), (713, 27730), (1081, 18290), (1357, 14570), (1426, 13865), (1457, 13570), (1829, 10810), (2162, 9145), (2714, 7285), (2773, 7130), (2914, 6785), (3565, 5546), (3658, 5405)]