128488165

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 180247680

約数和(自身を除く): 51759515

約数列:

[1, 5, 13, 19, 53, 65, 95, 151, 169, 247, 265, 689, 755, 845, 1007, 1235, 1963, 2869, 3211, 3445, 5035, 8003, 8957, 9815, 13091, 14345, 16055, 25519, 37297, 40015, 44785, 65455, 104039, 127595, 152057, 170183, 186485, 484861, 520195, 760285, 850915, 1352507, 1976741, 2424305, 6762535, 9883705, 25697633, 128488165]

約数ペア:

[(1, 128488165), (5, 25697633), (13, 9883705), (19, 6762535), (53, 2424305), (65, 1976741), (95, 1352507), (151, 850915), (169, 760285), (247, 520195), (265, 484861), (689, 186485), (755, 170183), (845, 152057), (1007, 127595), (1235, 104039), (1963, 65455), (2869, 44785), (3211, 40015), (3445, 37297), (5035, 25519), (8003, 16055), (8957, 14345), (9815, 13091)]