722540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1$

素因数の和:426

約数の個数: 48

約数和(自身を含む): 1872192

約数和(自身を除く): 1149652

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 397, 455, 794, 910, 1588, 1820, 1985, 2779, 3970, 5161, 5558, 7940, 10322, 11116, 13895, 20644, 25805, 27790, 36127, 51610, 55580, 72254, 103220, 144508, 180635, 361270, 722540]

約数ペア:

[(1, 722540), (2, 361270), (4, 180635), (5, 144508), (7, 103220), (10, 72254), (13, 55580), (14, 51610), (20, 36127), (26, 27790), (28, 25805), (35, 20644), (52, 13895), (65, 11116), (70, 10322), (91, 7940), (130, 5558), (140, 5161), (182, 3970), (260, 2779), (364, 1985), (397, 1820), (455, 1588), (794, 910)]