20181287035

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{198899}}^1$

素因数の和:199147

約数の個数: 32

約数和(自身を含む): 29940019200

約数和(自身を除く): 9758732165

約数列:

[1, 5, 7, 13, 35, 65, 91, 223, 455, 1115, 1561, 2899, 7805, 14495, 20293, 101465, 198899, 994495, 1392293, 2585687, 6961465, 12928435, 18099809, 44354477, 90499045, 221772385, 310481339, 576608201, 1552406695, 2883041005, 4036257407, 20181287035]

約数ペア:

[(1, 20181287035), (5, 4036257407), (7, 2883041005), (13, 1552406695), (35, 576608201), (65, 310481339), (91, 221772385), (223, 90499045), (455, 44354477), (1115, 18099809), (1561, 12928435), (2899, 6961465), (7805, 2585687), (14495, 1392293), (20293, 994495), (101465, 198899)]