20823170

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{389}}^1$

素因数の和:550

約数の個数: 32

約数和(自身を含む): 38666160

約数和(自身を除く): 17842990

約数列:

[1, 2, 5, 10, 53, 101, 106, 202, 265, 389, 505, 530, 778, 1010, 1945, 3890, 5353, 10706, 20617, 26765, 39289, 41234, 53530, 78578, 103085, 196445, 206170, 392890, 2082317, 4164634, 10411585, 20823170]

約数ペア:

[(1, 20823170), (2, 10411585), (5, 4164634), (10, 2082317), (53, 392890), (101, 206170), (106, 196445), (202, 103085), (265, 78578), (389, 53530), (505, 41234), (530, 39289), (778, 26765), (1010, 20617), (1945, 10706), (3890, 5353)]