19909110

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{719}}^1$

素因数の和:813

約数の個数: 64

約数和(自身を含む): 52254720

約数和(自身を除く): 32345610

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 71, 78, 130, 142, 195, 213, 355, 390, 426, 710, 719, 923, 1065, 1438, 1846, 2130, 2157, 2769, 3595, 4314, 4615, 5538, 7190, 9230, 9347, 10785, 13845, 18694, 21570, 27690, 28041, 46735, 51049, 56082, 93470, 102098, 140205, 153147, 255245, 280410, 306294, 510490, 663637, 765735, 1327274, 1531470, 1990911, 3318185, 3981822, 6636370, 9954555, 19909110]

約数ペア:

[(1, 19909110), (2, 9954555), (3, 6636370), (5, 3981822), (6, 3318185), (10, 1990911), (13, 1531470), (15, 1327274), (26, 765735), (30, 663637), (39, 510490), (65, 306294), (71, 280410), (78, 255245), (130, 153147), (142, 140205), (195, 102098), (213, 93470), (355, 56082), (390, 51049), (426, 46735), (710, 28041), (719, 27690), (923, 21570), (1065, 18694), (1438, 13845), (1846, 10785), (2130, 9347), (2157, 9230), (2769, 7190), (3595, 5538), (4314, 4615)]