18970016

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1471}}^1$

素因数の和:1525

約数の個数: 48

約数和(自身を含む): 41545728

約数和(自身を除く): 22575712

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 104, 124, 208, 248, 403, 416, 496, 806, 992, 1471, 1612, 2942, 3224, 5884, 6448, 11768, 12896, 19123, 23536, 38246, 45601, 47072, 76492, 91202, 152984, 182404, 305968, 364808, 592813, 611936, 729616, 1185626, 1459232, 2371252, 4742504, 9485008, 18970016]

約数ペア:

[(1, 18970016), (2, 9485008), (4, 4742504), (8, 2371252), (13, 1459232), (16, 1185626), (26, 729616), (31, 611936), (32, 592813), (52, 364808), (62, 305968), (104, 182404), (124, 152984), (208, 91202), (248, 76492), (403, 47072), (416, 45601), (496, 38246), (806, 23536), (992, 19123), (1471, 12896), (1612, 11768), (2942, 6448), (3224, 5884)]