353187880

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^2\times {\mathrm{457}}^1$

素因数の和:746

約数の個数: 48

約数和(自身を含む): 802182420

約数和(自身を除く): 448994540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 457, 556, 695, 914, 1112, 1390, 1828, 2285, 2780, 3656, 4570, 5560, 9140, 18280, 19321, 38642, 63523, 77284, 96605, 127046, 154568, 193210, 254092, 317615, 386420, 508184, 635230, 772840, 1270460, 2540920, 8829697, 17659394, 35318788, 44148485, 70637576, 88296970, 176593940, 353187880]

約数ペア:

[(1, 353187880), (2, 176593940), (4, 88296970), (5, 70637576), (8, 44148485), (10, 35318788), (20, 17659394), (40, 8829697), (139, 2540920), (278, 1270460), (457, 772840), (556, 635230), (695, 508184), (914, 386420), (1112, 317615), (1390, 254092), (1828, 193210), (2285, 154568), (2780, 127046), (3656, 96605), (4570, 77284), (5560, 63523), (9140, 38642), (18280, 19321)]