388804780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{16433}}^1$

素因数の和:16475

約数の個数: 72

約数和(自身を含む): 1010493792

約数和(自身を除く): 621689012

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 169, 182, 260, 338, 364, 455, 676, 845, 910, 1183, 1690, 1820, 2366, 3380, 4732, 5915, 11830, 16433, 23660, 32866, 65732, 82165, 115031, 164330, 213629, 230062, 328660, 427258, 460124, 575155, 854516, 1068145, 1150310, 1495403, 2136290, 2300620, 2777177, 2990806, 4272580, 5554354, 5981612, 7477015, 11108708, 13885885, 14954030, 19440239, 27771770, 29908060, 38880478, 55543540, 77760956, 97201195, 194402390, 388804780]

約数ペア:

[(1, 388804780), (2, 194402390), (4, 97201195), (5, 77760956), (7, 55543540), (10, 38880478), (13, 29908060), (14, 27771770), (20, 19440239), (26, 14954030), (28, 13885885), (35, 11108708), (52, 7477015), (65, 5981612), (70, 5554354), (91, 4272580), (130, 2990806), (140, 2777177), (169, 2300620), (182, 2136290), (260, 1495403), (338, 1150310), (364, 1068145), (455, 854516), (676, 575155), (845, 460124), (910, 427258), (1183, 328660), (1690, 230062), (1820, 213629), (2366, 164330), (3380, 115031), (4732, 82165), (5915, 65732), (11830, 32866), (16433, 23660)]