388439385280

素因数分解:

$2^6\times 5^1\times {\mathrm{2719}}^1\times {\mathrm{446441}}^1$

素因数の和:449177

約数の個数: 56

約数和(自身を含む): 925313546880

約数和(自身を除く): 536874161600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 2719, 5438, 10876, 13595, 21752, 27190, 43504, 54380, 87008, 108760, 174016, 217520, 435040, 446441, 870080, 892882, 1785764, 2232205, 3571528, 4464410, 7143056, 8928820, 14286112, 17857640, 28572224, 35715280, 71430560, 142861120, 1213873079, 2427746158, 4855492316, 6069365395, 9710984632, 12138730790, 19421969264, 24277461580, 38843938528, 48554923160, 77687877056, 97109846320, 194219692640, 388439385280]

約数ペア:

[(1, 388439385280), (2, 194219692640), (4, 97109846320), (5, 77687877056), (8, 48554923160), (10, 38843938528), (16, 24277461580), (20, 19421969264), (32, 12138730790), (40, 9710984632), (64, 6069365395), (80, 4855492316), (160, 2427746158), (320, 1213873079), (2719, 142861120), (5438, 71430560), (10876, 35715280), (13595, 28572224), (21752, 17857640), (27190, 14286112), (43504, 8928820), (54380, 7143056), (87008, 4464410), (108760, 3571528), (174016, 2232205), (217520, 1785764), (435040, 892882), (446441, 870080)]