20746670

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{821}}^1$

素因数の和:873

約数の個数: 48

約数和(自身を含む): 45098208

約数和(自身を除く): 24351538

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 361, 665, 722, 821, 1330, 1642, 1805, 2527, 3610, 4105, 5054, 5747, 8210, 11494, 12635, 15599, 25270, 28735, 31198, 57470, 77995, 109193, 155990, 218386, 296381, 545965, 592762, 1091930, 1481905, 2074667, 2963810, 4149334, 10373335, 20746670]

約数ペア:

[(1, 20746670), (2, 10373335), (5, 4149334), (7, 2963810), (10, 2074667), (14, 1481905), (19, 1091930), (35, 592762), (38, 545965), (70, 296381), (95, 218386), (133, 155990), (190, 109193), (266, 77995), (361, 57470), (665, 31198), (722, 28735), (821, 25270), (1330, 15599), (1642, 12635), (1805, 11494), (2527, 8210), (3610, 5747), (4105, 5054)]