251408638

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{1303}}^1$

素因数の和:1540

約数の個数: 32

約数和(自身を含む): 418646592

約数和(自身を除く): 167237954

約数列:

[1, 2, 13, 26, 41, 82, 181, 362, 533, 1066, 1303, 2353, 2606, 4706, 7421, 14842, 16939, 33878, 53423, 96473, 106846, 192946, 235843, 471686, 694499, 1388998, 3065959, 6131918, 9669563, 19339126, 125704319, 251408638]

約数ペア:

[(1, 251408638), (2, 125704319), (13, 19339126), (26, 9669563), (41, 6131918), (82, 3065959), (181, 1388998), (362, 694499), (533, 471686), (1066, 235843), (1303, 192946), (2353, 106846), (2606, 96473), (4706, 53423), (7421, 33878), (14842, 16939)]