393463408

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{439}}^1$

素因数の和:630

約数の個数: 80

約数和(自身を含む): 855500800

約数和(自身を除く): 462037392

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 139, 208, 248, 278, 403, 439, 496, 556, 806, 878, 1112, 1612, 1756, 1807, 2224, 3224, 3512, 3614, 4309, 5707, 6448, 7024, 7228, 8618, 11414, 13609, 14456, 17236, 22828, 27218, 28912, 34472, 45656, 54436, 56017, 61021, 68944, 91312, 108872, 112034, 122042, 176917, 217744, 224068, 244084, 353834, 448136, 488168, 707668, 793273, 896272, 976336, 1415336, 1586546, 1891651, 2830672, 3173092, 3783302, 6346184, 7566604, 12692368, 15133208, 24591463, 30266416, 49182926, 98365852, 196731704, 393463408]

約数ペア:

[(1, 393463408), (2, 196731704), (4, 98365852), (8, 49182926), (13, 30266416), (16, 24591463), (26, 15133208), (31, 12692368), (52, 7566604), (62, 6346184), (104, 3783302), (124, 3173092), (139, 2830672), (208, 1891651), (248, 1586546), (278, 1415336), (403, 976336), (439, 896272), (496, 793273), (556, 707668), (806, 488168), (878, 448136), (1112, 353834), (1612, 244084), (1756, 224068), (1807, 217744), (2224, 176917), (3224, 122042), (3512, 112034), (3614, 108872), (4309, 91312), (5707, 68944), (6448, 61021), (7024, 56017), (7228, 54436), (8618, 45656), (11414, 34472), (13609, 28912), (14456, 27218), (17236, 22828)]