20713156975

素因数分解:

$5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{18229}}^1$

素因数の和:18440

約数の個数: 48

約数和(自身を含む): 30236715520

約数和(自身を除く): 9523558545

約数列:

[1, 5, 7, 25, 35, 43, 151, 175, 215, 301, 755, 1057, 1075, 1505, 3775, 5285, 6493, 7525, 18229, 26425, 32465, 45451, 91145, 127603, 162325, 227255, 455725, 638015, 783847, 1136275, 2752579, 3190075, 3919235, 5486929, 13762895, 19268053, 19596175, 27434645, 68814475, 96340265, 118360897, 137173225, 481701325, 591804485, 828526279, 2959022425, 4142631395, 20713156975]

約数ペア:

[(1, 20713156975), (5, 4142631395), (7, 2959022425), (25, 828526279), (35, 591804485), (43, 481701325), (151, 137173225), (175, 118360897), (215, 96340265), (301, 68814475), (755, 27434645), (1057, 19596175), (1075, 19268053), (1505, 13762895), (3775, 5486929), (5285, 3919235), (6493, 3190075), (7525, 2752579), (18229, 1136275), (26425, 783847), (32465, 638015), (45451, 455725), (91145, 227255), (127603, 162325)]