71499880

素因数分解:

$2^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{7417}}^1$

素因数の和:7669

約数の個数: 32

約数和(自身を含む): 161564040

約数和(自身を除く): 90064160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 241, 482, 964, 1205, 1928, 2410, 4820, 7417, 9640, 14834, 29668, 37085, 59336, 74170, 148340, 296680, 1787497, 3574994, 7149988, 8937485, 14299976, 17874970, 35749940, 71499880]

約数ペア:

[(1, 71499880), (2, 35749940), (4, 17874970), (5, 14299976), (8, 8937485), (10, 7149988), (20, 3574994), (40, 1787497), (241, 296680), (482, 148340), (964, 74170), (1205, 59336), (1928, 37085), (2410, 29668), (4820, 14834), (7417, 9640)]