328911520

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{41953}}^1$

素因数の和:41982

約数の個数: 72

約数和(自身を含む): 903940884

約数和(自身を除く): 575029364

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 41953, 83906, 167812, 209765, 293671, 335624, 419530, 587342, 671248, 839060, 1174684, 1342496, 1468355, 1678120, 2055697, 2349368, 2936710, 3356240, 4111394, 4698736, 5873420, 6712480, 8222788, 9397472, 10278485, 11746840, 16445576, 20556970, 23493680, 32891152, 41113940, 46987360, 65782304, 82227880, 164455760, 328911520]

約数ペア:

[(1, 328911520), (2, 164455760), (4, 82227880), (5, 65782304), (7, 46987360), (8, 41113940), (10, 32891152), (14, 23493680), (16, 20556970), (20, 16445576), (28, 11746840), (32, 10278485), (35, 9397472), (40, 8222788), (49, 6712480), (56, 5873420), (70, 4698736), (80, 4111394), (98, 3356240), (112, 2936710), (140, 2349368), (160, 2055697), (196, 1678120), (224, 1468355), (245, 1342496), (280, 1174684), (392, 839060), (490, 671248), (560, 587342), (784, 419530), (980, 335624), (1120, 293671), (1568, 209765), (1960, 167812), (3920, 83906), (7840, 41953)]