18589220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:165

約数の個数: 96

約数和(自身を含む): 45722880

約数和(自身を除く): 27133660

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 53, 65, 71, 76, 95, 106, 130, 142, 190, 212, 247, 260, 265, 284, 355, 380, 494, 530, 689, 710, 923, 988, 1007, 1060, 1235, 1349, 1378, 1420, 1846, 2014, 2470, 2698, 2756, 3445, 3692, 3763, 4028, 4615, 4940, 5035, 5396, 6745, 6890, 7526, 9230, 10070, 13091, 13490, 13780, 15052, 17537, 18460, 18815, 20140, 26182, 26980, 35074, 37630, 48919, 52364, 65455, 70148, 71497, 75260, 87685, 97838, 130910, 142994, 175370, 195676, 244595, 261820, 285988, 350740, 357485, 489190, 714970, 929461, 978380, 1429940, 1858922, 3717844, 4647305, 9294610, 18589220]

約数ペア:

[(1, 18589220), (2, 9294610), (4, 4647305), (5, 3717844), (10, 1858922), (13, 1429940), (19, 978380), (20, 929461), (26, 714970), (38, 489190), (52, 357485), (53, 350740), (65, 285988), (71, 261820), (76, 244595), (95, 195676), (106, 175370), (130, 142994), (142, 130910), (190, 97838), (212, 87685), (247, 75260), (260, 71497), (265, 70148), (284, 65455), (355, 52364), (380, 48919), (494, 37630), (530, 35074), (689, 26980), (710, 26182), (923, 20140), (988, 18815), (1007, 18460), (1060, 17537), (1235, 15052), (1349, 13780), (1378, 13490), (1420, 13091), (1846, 10070), (2014, 9230), (2470, 7526), (2698, 6890), (2756, 6745), (3445, 5396), (3692, 5035), (3763, 4940), (4028, 4615)]