321639448

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{19}}^2\times {\mathrm{659}}^1$

素因数の和:729

約数の個数: 72

約数和(自身を含む): 690257700

約数和(自身を除く): 368618252

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 169, 247, 338, 361, 494, 659, 676, 722, 988, 1318, 1352, 1444, 1976, 2636, 2888, 3211, 4693, 5272, 6422, 8567, 9386, 12521, 12844, 17134, 18772, 25042, 25688, 34268, 37544, 50084, 61009, 68536, 100168, 111371, 122018, 162773, 222742, 237899, 244036, 325546, 445484, 475798, 488072, 651092, 890968, 951596, 1302184, 1903192, 2116049, 3092687, 4232098, 6185374, 8464196, 12370748, 16928392, 24741496, 40204931, 80409862, 160819724, 321639448]

約数ペア:

[(1, 321639448), (2, 160819724), (4, 80409862), (8, 40204931), (13, 24741496), (19, 16928392), (26, 12370748), (38, 8464196), (52, 6185374), (76, 4232098), (104, 3092687), (152, 2116049), (169, 1903192), (247, 1302184), (338, 951596), (361, 890968), (494, 651092), (659, 488072), (676, 475798), (722, 445484), (988, 325546), (1318, 244036), (1352, 237899), (1444, 222742), (1976, 162773), (2636, 122018), (2888, 111371), (3211, 100168), (4693, 68536), (5272, 61009), (6422, 50084), (8567, 37544), (9386, 34268), (12521, 25688), (12844, 25042), (17134, 18772)]