20206250

素因数分解:

$2^1\times 5^5\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:141

約数の個数: 48

約数和(自身を含む): 39231864

約数和(自身を除く): 19025614

約数列:

[1, 2, 5, 10, 25, 50, 53, 61, 106, 122, 125, 250, 265, 305, 530, 610, 625, 1250, 1325, 1525, 2650, 3050, 3125, 3233, 6250, 6466, 6625, 7625, 13250, 15250, 16165, 32330, 33125, 38125, 66250, 76250, 80825, 161650, 165625, 190625, 331250, 381250, 404125, 808250, 2020625, 4041250, 10103125, 20206250]

約数ペア:

[(1, 20206250), (2, 10103125), (5, 4041250), (10, 2020625), (25, 808250), (50, 404125), (53, 381250), (61, 331250), (106, 190625), (122, 165625), (125, 161650), (250, 80825), (265, 76250), (305, 66250), (530, 38125), (610, 33125), (625, 32330), (1250, 16165), (1325, 15250), (1525, 13250), (2650, 7625), (3050, 6625), (3125, 6466), (3233, 6250)]