19516250

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{1201}}^1$

素因数の和:1236

約数の個数: 40

約数和(自身を含む): 39428004

約数和(自身を除く): 19911754

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 625, 650, 1201, 1250, 1625, 2402, 3250, 6005, 8125, 12010, 15613, 16250, 30025, 31226, 60050, 78065, 150125, 156130, 300250, 390325, 750625, 780650, 1501250, 1951625, 3903250, 9758125, 19516250]

約数ペア:

[(1, 19516250), (2, 9758125), (5, 3903250), (10, 1951625), (13, 1501250), (25, 780650), (26, 750625), (50, 390325), (65, 300250), (125, 156130), (130, 150125), (250, 78065), (325, 60050), (625, 31226), (650, 30025), (1201, 16250), (1250, 15613), (1625, 12010), (2402, 8125), (3250, 6005)]