253188520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{1471}}^1$

素因数の和:1826

約数の個数: 64

約数和(自身を含む): 615767040

約数和(自身を除く): 362578520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 331, 520, 662, 1324, 1471, 1655, 2648, 2942, 3310, 4303, 5884, 6620, 7355, 8606, 11768, 13240, 14710, 17212, 19123, 21515, 29420, 34424, 38246, 43030, 58840, 76492, 86060, 95615, 152984, 172120, 191230, 382460, 486901, 764920, 973802, 1947604, 2434505, 3895208, 4869010, 6329713, 9738020, 12659426, 19476040, 25318852, 31648565, 50637704, 63297130, 126594260, 253188520]

約数ペア:

[(1, 253188520), (2, 126594260), (4, 63297130), (5, 50637704), (8, 31648565), (10, 25318852), (13, 19476040), (20, 12659426), (26, 9738020), (40, 6329713), (52, 4869010), (65, 3895208), (104, 2434505), (130, 1947604), (260, 973802), (331, 764920), (520, 486901), (662, 382460), (1324, 191230), (1471, 172120), (1655, 152984), (2648, 95615), (2942, 86060), (3310, 76492), (4303, 58840), (5884, 43030), (6620, 38246), (7355, 34424), (8606, 29420), (11768, 21515), (13240, 19123), (14710, 17212)]