257585440

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{2371}}^1$

素因数の和:2490

約数の個数: 96

約数和(自身を含む): 702946944

約数和(自身を除く): 445361504

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 97, 112, 140, 160, 194, 224, 280, 388, 485, 560, 679, 776, 970, 1120, 1358, 1552, 1940, 2371, 2716, 3104, 3395, 3880, 4742, 5432, 6790, 7760, 9484, 10864, 11855, 13580, 15520, 16597, 18968, 21728, 23710, 27160, 33194, 37936, 47420, 54320, 66388, 75872, 82985, 94840, 108640, 132776, 165970, 189680, 229987, 265552, 331940, 379360, 459974, 531104, 663880, 919948, 1149935, 1327760, 1609909, 1839896, 2299870, 2655520, 3219818, 3679792, 4599740, 6439636, 7359584, 8049545, 9199480, 12879272, 16099090, 18398960, 25758544, 32198180, 36797920, 51517088, 64396360, 128792720, 257585440]

約数ペア:

[(1, 257585440), (2, 128792720), (4, 64396360), (5, 51517088), (7, 36797920), (8, 32198180), (10, 25758544), (14, 18398960), (16, 16099090), (20, 12879272), (28, 9199480), (32, 8049545), (35, 7359584), (40, 6439636), (56, 4599740), (70, 3679792), (80, 3219818), (97, 2655520), (112, 2299870), (140, 1839896), (160, 1609909), (194, 1327760), (224, 1149935), (280, 919948), (388, 663880), (485, 531104), (560, 459974), (679, 379360), (776, 331940), (970, 265552), (1120, 229987), (1358, 189680), (1552, 165970), (1940, 132776), (2371, 108640), (2716, 94840), (3104, 82985), (3395, 75872), (3880, 66388), (4742, 54320), (5432, 47420), (6790, 37936), (7760, 33194), (9484, 27160), (10864, 23710), (11855, 21728), (13580, 18968), (15520, 16597)]