155813140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{158993}}^1$

素因数の和:159016

約数の個数: 36

約数和(自身を含む): 380631636

約数和(自身を除く): 224818496

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 158993, 317986, 635972, 794965, 1112951, 1589930, 2225902, 3179860, 4451804, 5564755, 7790657, 11129510, 15581314, 22259020, 31162628, 38953285, 77906570, 155813140]

約数ペア:

[(1, 155813140), (2, 77906570), (4, 38953285), (5, 31162628), (7, 22259020), (10, 15581314), (14, 11129510), (20, 7790657), (28, 5564755), (35, 4451804), (49, 3179860), (70, 2225902), (98, 1589930), (140, 1112951), (196, 794965), (245, 635972), (490, 317986), (980, 158993)]