13195880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{179}}^1$

素因数の和:306

約数の個数: 64

約数和(自身を含む): 31752000

約数和(自身を除く): 18556120

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 97, 152, 179, 190, 194, 358, 380, 388, 485, 716, 760, 776, 895, 970, 1432, 1790, 1843, 1940, 3401, 3580, 3686, 3880, 6802, 7160, 7372, 9215, 13604, 14744, 17005, 17363, 18430, 27208, 34010, 34726, 36860, 68020, 69452, 73720, 86815, 136040, 138904, 173630, 329897, 347260, 659794, 694520, 1319588, 1649485, 2639176, 3298970, 6597940, 13195880]

約数ペア:

[(1, 13195880), (2, 6597940), (4, 3298970), (5, 2639176), (8, 1649485), (10, 1319588), (19, 694520), (20, 659794), (38, 347260), (40, 329897), (76, 173630), (95, 138904), (97, 136040), (152, 86815), (179, 73720), (190, 69452), (194, 68020), (358, 36860), (380, 34726), (388, 34010), (485, 27208), (716, 18430), (760, 17363), (776, 17005), (895, 14744), (970, 13604), (1432, 9215), (1790, 7372), (1843, 7160), (1940, 6802), (3401, 3880), (3580, 3686)]