897642785

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{271}}^1\times {\mathrm{389}}^1$

素因数の和:809

約数の個数: 32

約数和(自身を含む): 1176215040

約数和(自身を除く): 278572255

約数列:

[1, 5, 13, 65, 131, 271, 389, 655, 1355, 1703, 1945, 3523, 5057, 8515, 17615, 25285, 35501, 50959, 105419, 177505, 254795, 461513, 527095, 662467, 1370447, 2307565, 3312335, 6852235, 13809889, 69049445, 179528557, 897642785]

約数ペア:

[(1, 897642785), (5, 179528557), (13, 69049445), (65, 13809889), (131, 6852235), (271, 3312335), (389, 2307565), (655, 1370447), (1355, 662467), (1703, 527095), (1945, 461513), (3523, 254795), (5057, 177505), (8515, 105419), (17615, 50959), (25285, 35501)]