19913425

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1$

素因数の和:202

約数の個数: 48

約数和(自身を含む): 30533760

約数和(自身を除く): 10620335

約数列:

[1, 5, 7, 19, 25, 35, 53, 95, 113, 133, 175, 265, 371, 475, 565, 665, 791, 1007, 1325, 1855, 2147, 2825, 3325, 3955, 5035, 5989, 7049, 9275, 10735, 15029, 19775, 25175, 29945, 35245, 41923, 53675, 75145, 113791, 149725, 176225, 209615, 375725, 568955, 796537, 1048075, 2844775, 3982685, 19913425]

約数ペア:

[(1, 19913425), (5, 3982685), (7, 2844775), (19, 1048075), (25, 796537), (35, 568955), (53, 375725), (95, 209615), (113, 176225), (133, 149725), (175, 113791), (265, 75145), (371, 53675), (475, 41923), (565, 35245), (665, 29945), (791, 25175), (1007, 19775), (1325, 15029), (1855, 10735), (2147, 9275), (2825, 7049), (3325, 5989), (3955, 5035)]