20154550

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{307}}^1$

素因数の和:433

約数の個数: 48

約数和(自身を含む): 40903632

約数和(自身を除く): 20749082

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 101, 130, 202, 307, 325, 505, 614, 650, 1010, 1313, 1535, 2525, 2626, 3070, 3991, 5050, 6565, 7675, 7982, 13130, 15350, 19955, 31007, 32825, 39910, 62014, 65650, 99775, 155035, 199550, 310070, 403091, 775175, 806182, 1550350, 2015455, 4030910, 10077275, 20154550]

約数ペア:

[(1, 20154550), (2, 10077275), (5, 4030910), (10, 2015455), (13, 1550350), (25, 806182), (26, 775175), (50, 403091), (65, 310070), (101, 199550), (130, 155035), (202, 99775), (307, 65650), (325, 62014), (505, 39910), (614, 32825), (650, 31007), (1010, 19955), (1313, 15350), (1535, 13130), (2525, 7982), (2626, 7675), (3070, 6565), (3991, 5050)]