331389640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{1609}}^1$

素因数の和:1910

約数の個数: 64

約数和(自身を含む): 788256000

約数和(自身を除く): 456866360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 271, 380, 542, 760, 1084, 1355, 1609, 2168, 2710, 3218, 5149, 5420, 6436, 8045, 10298, 10840, 12872, 16090, 20596, 25745, 30571, 32180, 41192, 51490, 61142, 64360, 102980, 122284, 152855, 205960, 244568, 305710, 436039, 611420, 872078, 1222840, 1744156, 2180195, 3488312, 4360390, 8284741, 8720780, 16569482, 17441560, 33138964, 41423705, 66277928, 82847410, 165694820, 331389640]

約数ペア:

[(1, 331389640), (2, 165694820), (4, 82847410), (5, 66277928), (8, 41423705), (10, 33138964), (19, 17441560), (20, 16569482), (38, 8720780), (40, 8284741), (76, 4360390), (95, 3488312), (152, 2180195), (190, 1744156), (271, 1222840), (380, 872078), (542, 611420), (760, 436039), (1084, 305710), (1355, 244568), (1609, 205960), (2168, 152855), (2710, 122284), (3218, 102980), (5149, 64360), (5420, 61142), (6436, 51490), (8045, 41192), (10298, 32180), (10840, 30571), (12872, 25745), (16090, 20596)]