978380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:146

約数の個数: 48

約数和(自身を含む): 2286144

約数和(自身を除く): 1307764

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 71, 106, 130, 142, 212, 260, 265, 284, 355, 530, 689, 710, 923, 1060, 1378, 1420, 1846, 2756, 3445, 3692, 3763, 4615, 6890, 7526, 9230, 13780, 15052, 18460, 18815, 37630, 48919, 75260, 97838, 195676, 244595, 489190, 978380]

約数ペア:

[(1, 978380), (2, 489190), (4, 244595), (5, 195676), (10, 97838), (13, 75260), (20, 48919), (26, 37630), (52, 18815), (53, 18460), (65, 15052), (71, 13780), (106, 9230), (130, 7526), (142, 6890), (212, 4615), (260, 3763), (265, 3692), (284, 3445), (355, 2756), (530, 1846), (689, 1420), (710, 1378), (923, 1060)]