19105020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{9649}}^1$

素因数の和:9675

約数の個数: 72

約数和(自身を含む): 63226800

約数和(自身を除く): 44121780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 9649, 19298, 28947, 38596, 48245, 57894, 86841, 96490, 106139, 115788, 144735, 173682, 192980, 212278, 289470, 318417, 347364, 424556, 434205, 530695, 578940, 636834, 868410, 955251, 1061390, 1273668, 1592085, 1736820, 1910502, 2122780, 3184170, 3821004, 4776255, 6368340, 9552510, 19105020]

約数ペア:

[(1, 19105020), (2, 9552510), (3, 6368340), (4, 4776255), (5, 3821004), (6, 3184170), (9, 2122780), (10, 1910502), (11, 1736820), (12, 1592085), (15, 1273668), (18, 1061390), (20, 955251), (22, 868410), (30, 636834), (33, 578940), (36, 530695), (44, 434205), (45, 424556), (55, 347364), (60, 318417), (66, 289470), (90, 212278), (99, 192980), (110, 173682), (132, 144735), (165, 115788), (180, 106139), (198, 96490), (220, 86841), (330, 57894), (396, 48245), (495, 38596), (660, 28947), (990, 19298), (1980, 9649)]