19663840

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{181}}^1$

素因数の和:300

約数の個数: 96

約数和(自身を含む): 53936064

約数和(自身を除く): 34272224

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 97, 112, 140, 160, 181, 194, 224, 280, 362, 388, 485, 560, 679, 724, 776, 905, 970, 1120, 1267, 1358, 1448, 1552, 1810, 1940, 2534, 2716, 2896, 3104, 3395, 3620, 3880, 5068, 5432, 5792, 6335, 6790, 7240, 7760, 10136, 10864, 12670, 13580, 14480, 15520, 17557, 20272, 21728, 25340, 27160, 28960, 35114, 40544, 50680, 54320, 70228, 87785, 101360, 108640, 122899, 140456, 175570, 202720, 245798, 280912, 351140, 491596, 561824, 614495, 702280, 983192, 1228990, 1404560, 1966384, 2457980, 2809120, 3932768, 4915960, 9831920, 19663840]

約数ペア:

[(1, 19663840), (2, 9831920), (4, 4915960), (5, 3932768), (7, 2809120), (8, 2457980), (10, 1966384), (14, 1404560), (16, 1228990), (20, 983192), (28, 702280), (32, 614495), (35, 561824), (40, 491596), (56, 351140), (70, 280912), (80, 245798), (97, 202720), (112, 175570), (140, 140456), (160, 122899), (181, 108640), (194, 101360), (224, 87785), (280, 70228), (362, 54320), (388, 50680), (485, 40544), (560, 35114), (679, 28960), (724, 27160), (776, 25340), (905, 21728), (970, 20272), (1120, 17557), (1267, 15520), (1358, 14480), (1448, 13580), (1552, 12670), (1810, 10864), (1940, 10136), (2534, 7760), (2716, 7240), (2896, 6790), (3104, 6335), (3395, 5792), (3620, 5432), (3880, 5068)]