19487060

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{15973}}^1$

素因数の和:16043

約数の個数: 24

約数和(自身を含む): 41596296

約数和(自身を除く): 22109236

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 15973, 31946, 63892, 79865, 159730, 319460, 974353, 1948706, 3897412, 4871765, 9743530, 19487060]

約数ペア:

[(1, 19487060), (2, 9743530), (4, 4871765), (5, 3897412), (10, 1948706), (20, 974353), (61, 319460), (122, 159730), (244, 79865), (305, 63892), (610, 31946), (1220, 15973)]