688768496

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{1453}}^1$

素因数の和:1570

約数の個数: 80

約数和(自身を含む): 1499341536

約数和(自身を除く): 810573040

約数列:

[1, 2, 4, 8, 13, 16, 26, 43, 52, 53, 86, 104, 106, 172, 208, 212, 344, 424, 559, 688, 689, 848, 1118, 1378, 1453, 2236, 2279, 2756, 2906, 4472, 4558, 5512, 5812, 8944, 9116, 11024, 11624, 18232, 18889, 23248, 29627, 36464, 37778, 59254, 62479, 75556, 77009, 118508, 124958, 151112, 154018, 237016, 249916, 302224, 308036, 474032, 499832, 616072, 812227, 999664, 1001117, 1232144, 1624454, 2002234, 3248908, 3311387, 4004468, 6497816, 6622774, 8008936, 12995632, 13245548, 16017872, 26491096, 43048031, 52982192, 86096062, 172192124, 344384248, 688768496]

約数ペア:

[(1, 688768496), (2, 344384248), (4, 172192124), (8, 86096062), (13, 52982192), (16, 43048031), (26, 26491096), (43, 16017872), (52, 13245548), (53, 12995632), (86, 8008936), (104, 6622774), (106, 6497816), (172, 4004468), (208, 3311387), (212, 3248908), (344, 2002234), (424, 1624454), (559, 1232144), (688, 1001117), (689, 999664), (848, 812227), (1118, 616072), (1378, 499832), (1453, 474032), (2236, 308036), (2279, 302224), (2756, 249916), (2906, 237016), (4472, 154018), (4558, 151112), (5512, 124958), (5812, 118508), (8944, 77009), (9116, 75556), (11024, 62479), (11624, 59254), (18232, 37778), (18889, 36464), (23248, 29627)]